Automobile dimming glass adjusting method and device and vehicle

Abstract

The invention discloses an automobile dimming glass adjusting method and device and a vehicle, and relates to the technical field of automobile dimming glass. Comprising the following steps: providing an entity control piece which can rotate by 360 degrees and can be pressed down and is used for receiving the operation of a user and sending out a control signal; a control unit is provided, and the control unit is in communication connection with the entity control part so as to receive a control signal sent by the entity control part and control the transparency of the dimming glass; obtaining a dimming mode selected by a user from two preset dimming modes; determining a dimming control mode according to the selected dimming mode, wherein the control mode comprises automatic control, manual control and automatic and manual control; automatic control of dimming is carried out according to data collected by a sensor on the automobile; and carrying out manual control according to the mapping relationship between the operation of the entity control piece and the transparency of the dimming glass. The problem that the number of entity switch functions and gears of the dimming glass is small is solved, and the use experience and comfort of a user can be greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile dimming glass, in particular to a dimming glass adjusting method and device for an automobile and a vehicle. BACKGROUND

[0002] With the development of automobile intelligence and the improvement of people's pursuit of automobile comfort experience, dimming glass is becoming more and more a standard component of high-end automobiles in the Chinese new energy automobile market. Compared with traditional sunshades, dimming glass cancels the mechanical structure and does not cause visual interference, combining practicality and technological sense. As for the operation of dimming glass, a brightness bar in the screen or a physical switch with multiple gears is generally used for adjustment. With the increase of the response rate and the number of gears of dimming glass, the response rate of dimming glass has entered the millisecond level, and there is an increasing need for a physical operating part to adjust dimming glass "steplessly". The gears of the physical switch in the current industry are few, and gradually cannot meet the needs of users.

[0003] CN119974921A discloses a dimming front windshield glass assembly and a vehicle. The dimming front windshield glass assembly includes an outer layer glass, an inner layer glass, and a first film structure, a dimming film structure, and a second film structure arranged in sequence from the outer layer glass to the inner layer glass. The dimming film assembly is located at the top of the outer layer glass, so as to adjust the light transmittance of the front windshield glass assembly by using the dimming film assembly. When the vehicle is driven under strong sunlight, the top of the front windshield glass assembly is dimmed by using the dimming film assembly, effectively blocking the sunlight. When the vehicle is driven under weak sunlight, the top of the front windshield glass assembly is brightened by using the dimming film assembly, improving the light transmittance and avoiding the feeling of oppression on the driver. However, the specific method of light adjustment is not disclosed in the prior art.

[0004] CN117984746A provides an automobile windshield transparency management system, which includes a dimmable glass, a scroll wheel button, a controller, and a matching power supply. The dimmable glass is electrically connected to the power supply and includes a plurality of dimmable areas arranged in an m-row, n-column rectangular array. The scroll wheel button is used to select one or more dimmable areas in the dimmable glass to obtain a dimmable area. The controller controls the power supply to adjust the light transmittance of the dimmable area according to the dimmable area. Based on the above transparency management system, the invention also provides a method for adjusting the transparency of an automobile. However, the physical switch of the prior art is mainly used to select the dimmable area and cannot adjust the size of the light transmittance. SUMMARY

[0005] The application aims to provide a car dimming glass adjusting method and device and a vehicle, which can control the dimming glass through a physical knob, realize stepless adjustment, and make personalized mode selection and light transmission adjustment according to user needs, solve the problem of the physical switch function and few gears of the dimming glass, and greatly improve the user experience and comfort.

[0006] The application provides the following solutions

[0007] A car dimming glass adjusting method comprises the following steps:

[0008] A physical operating part capable of 360° rotation and short pressing is provided to receive user operation and send a control signal;

[0009] A control unit is provided, which is in communication connection with the physical operating part to receive the control signal sent by the physical operating part and control the transparency of the dimming glass;

[0010] One dimming mode selected by the user from two preset dimming modes is acquired, and the dimming modes include a privacy mode and a shading mode;

[0011] The control mode of dimming is determined according to the selected dimming mode, and the control mode includes automatic control, manual control, and automatic plus manual control;

[0012] Automatic control of dimming is performed according to data collected by sensors on the car;

[0013] Manual control is performed according to the mapping relationship between the operation of the physical operating part and the transparency of the dimming glass.

[0014] Further, the physical operating part switches the dimming mode between the privacy mode and the shading mode by receiving the long pressing operation of the user; and the mapping relationship between the operation of the physical operating part and the transparency of the dimming glass includes the mapping relationship between the rotation of the physical operating part and the transparency of the dimming glass and the mapping relationship between the short pressing of the physical operating part and the transparency of the dimming glass.

[0015] The mapping relationship between the rotation of the physical operating part and the transparency of the dimming glass includes adjusting the transparency of the dimming glass according to the rotation amount of the physical operating part.

[0016] The mapping relationship between the short pressing of the physical operating part and the transparency of the dimming glass includes adjusting the transparency of the dimming glass to the highest light transmission state or the lowest light transmission state by short pressing the physical operating part.

[0017] Further, at least 10 gears are provided in each circle of the physical operating part, which correspond to the gear parameters of the dimming glass, and the control unit pre-stores the current gear parameter s of the dimming glass and the maximum gear parameter s supported by the dimming glass. max, the entity control receives the rotation amount of the entity control in one operation cycle and encodes the rotation amount into a corresponding change amount signal Δs', the entity control determines the positive or negative attribute of the change amount signal Δs' according to a preset gear definition rule, and sends the change amount signal Δs' to the control unit through the LIN bus;

[0018] After receiving the change amount signal Δs', the control unit first decodes the signal to restore the actual corresponding gear increment Δs, and then retrieves the pre-stored current gear s and calculates the sum of the current gear s and the gear increment Δs, i.e., s+Δs.

[0019] Further, the control unit adjusts the transparency of the light control glass according to the numerical range of s+Δs, and the specific adjustment rules are as follows:

[0020] If s+Δs<0, the gear of the light control glass is locked at 0, and the transparency is adjusted to the lowest light transmission state;

[0021] If s+Δs>s max , the control unit locks the gear of the light control glass at s max , and adjusts the transparency to the highest light transmission state;

[0022] If 0≤s+Δs≤s max , the control unit sets the gear of the light control glass to s+Δs, and adjusts the transparency to the light transmission state matched by the gear.

[0023] Further, when receiving a long press operation of the user, the entity control sends a long press trigger signal to the control unit, and the control unit receives the signal and controls the light control glass to switch between the privacy mode and the sunshade mode; in the default state, the light control glass is in the privacy mode, which only allows manual control by rotating the entity control; in the sunshade mode, according to the data collected by the sensors on the car, automatic and manual control can also be performed by rotating the entity control to perform fine adjustment.

[0024] Further, the automatic control of light adjustment in the sunshade mode includes,

[0025] The control unit establishes data communication connection with the sunlight sensor and the rain sensor of the vehicle, and obtains the environmental light intensity data and the rain data collected by the sunlight sensor and the rain sensor in real time; the control unit calculates the basic light transmission rate according to the real-time obtained environmental light intensity data, adjusts the basic light transmission rate combined with the rain data to obtain the final light transmission rate, and automatically adjusts the gear and the corresponding transparency of the light control glass according to the final light transmission rate.

[0026] Further, the automatic and manual control in the sunshade mode to perform the fine adjustment operation comprises,

[0027] The control unit receives and decodes the corresponding change amount signal Δs', calculates the fine adjustment gear increment Δs1, superimposes the current automatically adjusted gear and the fine adjustment gear increment Δs1 to obtain a new target gear, and further adjusts the transparency; at this time, the control unit still continuously obtains the data of the sunlight and rainfall sensors and updates the basic light transmittance target value, and the new target gear is always the superimposed value of the gear corresponding to the updated basic light transmittance target value and the fine adjustment gear increment Δs1, so as to realize the composite adjustment effect of automatic adjustment plus manual offset.

[0028] In the sunshade mode, the physical operating part receives the user's long press operation again, the physical operating part sends a secondary long press trigger signal to the control unit, and the control unit controls the switch of the dimming glass back to the privacy mode after receiving the signal, and clears the manual fine adjustment gear increment Δs1 in the sunshade mode, and restores to the manual adjustment state in the privacy mode.

[0029] Further, a rear row screen is arranged on the vehicle, and the control unit is in data communication connection with the rear row screen; when the dimming glass switches between the privacy mode and the sunshade mode, the control unit sends a mode switching signal to the rear row screen, and the rear row screen pops up corresponding mode prompt information on the display interface after receiving the signal, the prompt information includes the current mode name and the adjustment rule description in the mode, and the prompt information is displayed for 3-5 seconds and then automatically disappears to avoid interfering with the user watching the screen content.

[0030] A dimming glass adjustment device for a vehicle is used to realize the above-mentioned dimming glass adjustment method for a vehicle, and the device comprises:

[0031] The physical operating part module is a 360° rotatable knob or a roller structure, which is used to detect the user's rotation and press-down operation and convert the operation into a corresponding trigger signal, and the signal is sent through a LIN bus interface;

[0032] The control module is a dimming glass controller or a vehicle domain controller, which is in communication connection with the physical operating part module, is used to store preset information, receive the control signals sent by the physical operating part module and the sensors, send mode prompt signals and fault prompt signals, and control the light transmittance of the dimming glass;

[0033] The light transmittance detection module is in communication connection with the control module, and is used to detect the light transmittance of the dimming glass and send the light transmittance information to the control module;

[0034] A mode prompting module, which comprises a rear row screen and a vehicle instrument panel, is in communication connection with the control module, for receiving the mode switching signal sent by the control module and displaying relevant information on the rear row screen and the vehicle instrument panel.

[0035] A vehicle comprising the automobile light-adjusting glass adjusting device; the light-adjusting glass in the automobile light-adjusting glass adjusting device is installed on the rear row window of the vehicle; the vehicle is provided with a sunlight sensor and a rainfall sensor.

[0036] Compared with the prior art, the present application has the following advantages:

[0037] 1. Realize stepless adjustment of light-adjusting glass: physical operating part ≥ 10 gears (such as 12 / 15 / 30 gears) per circle, solve the problem of few gears of traditional physical switch, high adjustment precision, and meet the fine light control demand of users.

[0038] 2. Convenient and flexible operation: the operating part has the functions of rotating to adjust transparency, pressing one key to make it fully bright / dark, and long-pressing to switch modes, and the default privacy mode and sunshade mode adapt to different scenes, improving the convenience of use.

[0039] 3. Ensure driving safety: the light-adjusting glass is only used in the rear row of the vehicle and is not used in the front row, avoiding blocking the driver's view and reducing safety hazards.

[0040] 4. Improve user experience and reliability: the rear row screen synchronously prompts the mode, and the user perceives clearly; the light transmittance is dynamically adjusted according to the environment, and the comfort is high. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0042] FIG. 1 is a schematic diagram of the automobile light-adjusting glass adjusting method according to the present application; Figure 1 FIG. 2 is a schematic diagram of the operation of the physical operating part and the corresponding relationship between the light-adjusting glass adjusting according to the present application; FIG. 3 is a schematic diagram of the mapping relationship logic between the operation of the physical operating part and the transparency of the light-adjusting glass according to the present application;

[0043] FIG. 4 is a schematic diagram of the structure of the automobile light-adjusting glass adjusting device according to the present application. Figure 2

[0044] Figure 3

[0045] Figure 4 FIG. 5 is a schematic diagram of the structure of the automobile light-adjusting glass adjusting device according to the present application.​​​ DETAILED DESCRIPTION

[0046] In order to make the purposes, technical solutions and advantages of the present application clearer, the following further describes the present application with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of the present application.

[0047] The terms used in the embodiments of the present application are only for the purpose of describing particular embodiments and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the appended claims are intended to include the plural forms, unless the context clearly indicates otherwise. "Multiple" generally includes at least two.

[0048] It should be understood that the term "and / or" used herein only describes an association relationship of associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0049] It should be understood that although the terms first, second, third, etc. can be used in the embodiments of the present application, these descriptions should not be limited to these terms. These terms are only used to distinguish the description. For example, without departing from the scope of the embodiments of the present application, the first can also be called the second, and similarly, the second can also be called the first.

[0050] Depending on the context, the word "if" as used herein can be interpreted to mean "when" or "upon" or "in response to determining" or "in response to detecting". Similarly, depending on the context, the phrase "if it is determined" or "if [a stated condition or event] is detected" can be interpreted to mean "upon determining" or "in response to determining" or "upon detecting [the stated condition or event]" or "in response to detecting [the stated condition or event]".

[0051] It should also be noted that the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusion, so that a product or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent in such product or device. Without more limitations, the element defined by the sentence "including a" does not exclude the presence of other identical elements in the product or device including the element.

[0052] It is particularly important to note that the symbols and / or numbers present in the description, if not marked in the description, are not reference signs.

[0053] Embodiment 1, please refer to Figure 1 As shown in the figure, the embodiment provides a car light-adjusting glass adjusting method, including the following steps:

[0054] A 360° rotatable and pressable physical control is provided for receiving user operation and sending control signals;

[0055] A control unit is provided, which is in communication connection with the physical control to receive the control signals sent by the physical control and control the transparency of the light-adjusting glass;

[0056] One light-adjusting mode selected by the user from the two preset light-adjusting modes is obtained, the light-adjusting mode including a privacy mode and a shading mode;

[0057] The control mode of light-adjusting is determined according to the selected light-adjusting mode, the control mode including automatic control, manual control and automatic plus manual control;

[0058] The automatic control of light-adjusting is performed according to the data collected by the sensors on the car;

[0059] The manual control is performed according to the mapping relationship between the operation of the physical control and the transparency of the light-adjusting glass.

[0060] Specifically, please refer to Figure 2 As shown in the figure, a 360° rotatable physical control is provided for receiving user rotation operation and sending control signals; the physical control is provided with no less than 10 gear positions per circle, and the typical gear position number can be selected as 12 gears, 15 gears or 30 gears to meet the operation precision requirement of "stepless adjustment"; at the same time, the physical control is also integrated with a press function for triggering the one-key full-brightness (the highest light transmission state) or one-key full-dark (the lowest light transmission state) operation of the light-adjusting glass and the mode switching operation.

[0061] A control unit is provided, which is a light-adjusting glass controller or a vehicle domain controller, the control unit pre-stores the current gear position parameter s of the light-adjusting glass and the maximum gear position parameter s supported by the light-adjusting glass max , and the control unit is in communication connection with the physical control through a LIN bus to receive the control signals sent by the physical control.

[0062] Please refer to Figure 3As shown, when the user performs a rotation operation, the physical control detects the rotation amount of the user in one operation cycle in real time, encodes the rotation amount as a corresponding change amount signal Δs', determines the positive or negative attribute of the change amount signal Δs' according to the preset gear definition rule of the physical control, and sends the change amount signal Δs' to the control unit through the LIN bus.

[0063] After the control unit receives the change amount signal Δs', it first decodes the signal to restore the actual corresponding gear increment / decrement Δs, and then retrieves the pre-stored current gear s, calculates the sum of the current gear s and the gear increment / decrement Δs, i.e., s+Δs.

[0064] The control unit adjusts the transparency of the switchable glass according to the numerical range of s+Δs, and the specific adjustment rules are as follows:

[0065] When s+Δs<0, the control unit locks the gear of the switchable glass to 0, corresponding to adjusting the transparency to the lowest light transmission state.

[0066] When s+Δs>s max , the control unit locks the gear of the switchable glass to s max , corresponding to adjusting the transparency to the highest light transmission state.

[0067] When 0≤s+Δs≤s max , the control unit sets the gear of the switchable glass to s+Δs, corresponding to adjusting the transparency to the light transmission state matched by the gear.

[0068] When the user performs a press-down operation, the physical control sends a press-down trigger signal to the control unit, and the control unit, after receiving the signal, performs a one-key full-brightness or one-key full-dark operation according to the current light transmission state of the switchable glass: if the current light transmission state is not the highest light transmission state, the switchable glass is controlled to switch to the highest light transmission state; if the current light transmission state is the highest light transmission state, the switchable glass is controlled to switch to the lowest light transmission state.

[0069] The control unit also supports mode switching functions, including a privacy mode and a sunshade mode; by default, the switchable glass is in the privacy mode, which only allows manual transparency adjustment by rotating the physical control; when the user long-presses the physical control, the physical control sends a long-press trigger signal to the control unit, and the control unit, after receiving the signal, controls the switchable glass to switch to the sunshade mode.

[0070] In the sunshade mode, the control unit establishes a data communication connection with the sunlight and rainfall sensors of the vehicle, and obtains the ambient light intensity data and rainfall data collected by the sunlight and rainfall sensors in real time; the control unit calculates a basic light transmittance according to the real-time obtained ambient light intensity data, and the light intensity and the basic light transmittance are in a negative correlation relationship, and then adjusts the basic light transmittance by multiplying a regulation coefficient of 1-1.5 in combination with the rainfall data, and the rainfall and the regulation coefficient are in a positive correlation relationship, for example, the regulation coefficient is 1.0 when there is no rain, the regulation coefficient is 1.1 when it is light rain, the regulation coefficient is 1.2 when it is moderate rain, the regulation coefficient is 1.3 when it is heavy rain, and the regulation coefficient is 1.4 when it is heavy rain; a final light transmittance is obtained, and the gear of the dimming glass and the corresponding transparency are automatically adjusted according to the final light transmittance.

[0071] In the sunshade mode, if the user performs a manual fine adjustment operation by rotating the physical control, the control unit receives and decodes the corresponding change amount signal Δs', calculates a fine adjustment gear increment Δs1, superimposes the current automatically adjusted gear and the fine adjustment gear increment Δs1 to obtain a new target gear, and then adjusts the transparency; at this time, the control unit still continuously obtains the data of the sunlight and rainfall sensors and updates the basic light transmittance target value, and the new target gear is always the superimposed value of the gear corresponding to the updated basic light transmittance target value and the fine adjustment gear increment Δs1, so as to realize the composite adjustment effect of "automatic adjustment + manual offset".

[0072] In the sunshade mode, when the user presses the physical control again, the physical control sends a second long-press trigger signal to the control unit, and the control unit controls the dimming glass to switch back to the privacy mode after receiving the signal, and clears the manual fine adjustment gear increment Δs1 in the sunshade mode, and restores to the manual adjustment state in the privacy mode.

[0073] The vehicle is provided with a rear screen, and the control unit also establishes a data communication connection with the rear screen; when the dimming glass switches between the privacy mode and the sunshade mode, the control unit sends a mode switching signal to the rear screen, and the rear screen pops up corresponding mode prompt information on the display interface after receiving the signal, the prompt information includes the current mode name (privacy mode / sunshade mode) and the adjustment rule description in the mode, and the display time length of the prompt information is set to 3-5 seconds, and then the prompt information automatically disappears, so as to avoid interfering with the user watching the screen content.

[0074] The control unit also has a gear memory function, and when the vehicle is turned off, the control unit stores the gear parameter s of the dimming glass; when the vehicle is started again, the control unit calls the stored gear parameter s to control the dimming glass to restore to the gear and corresponding transparency state before the vehicle is turned off; at the same time, the control unit also sets a gear abnormality protection mechanism, and if it is detected that the current gear s does not match the actual light transmittance state, such as the gear smax But the light transmittance does not reach the maximum value, the gear is automatically reset to 0, and a fault prompt signal is sent to the vehicle instrument panel, and a dimming system fault indicator light is lit on the instrument panel to remind the user to repair.

[0075] Embodiment 2, please refer to Figure 4 As shown in the figure, the embodiment provides an automobile dimming glass adjusting device for realizing the automobile dimming glass adjusting method described above, which comprises:

[0076] The physical operating element module is a 360° rotatable knob or roller structure, which is used to detect the rotation and pressing down operation of the user and convert it into a corresponding trigger signal, and send the signal through the LIN bus interface;

[0077] The control module is a dimming glass controller or a vehicle domain controller, which is in communication connection with the physical operating element module, is used to store preset information, receive control signals sent by the physical operating element module and the sensor, send mode prompt signals and fault prompt signals, and control the light transmittance of the dimming glass;

[0078] The light transmittance detection module is in communication connection with the control module, and is used to detect the light transmittance of the dimming glass and send the light transmittance information to the control module;

[0079] The mode prompt module comprises a rear screen and a vehicle instrument panel, which are in communication connection with the control module, and are used to receive mode switching signals sent by the control module and display related information on the rear screen and the vehicle instrument panel.

[0080] Specifically, the physical operating element module is a 360° rotatable knob or roller structure, and the physical operating element module is internally integrated with a photoelectric encoding assembly, a pressing down detection assembly and a signal processing assembly; the photoelectric encoding assembly is used to detect the rotation amount Δs of the user's rotation operation and determine the rotation direction; the pressing down detection assembly is used to detect the pressing down operation and the long pressing operation (the long pressing operation is defined as the pressing time ≥ 2 seconds) of the user; the signal processing assembly is used to encode the rotation amount Δs into a change amount signal Δs', convert the pressing down operation and the long pressing operation into corresponding trigger signals, and send the signals to the control module through the LIN bus interface; the shell of the physical operating element module is made of ABS engineering plastic material, and the surface is provided with anti-slip lines, and the diameter of the knob or roller is 20-30 mm, which is convenient for the user to operate with one hand.

[0081] The control module is a dimming glass controller or a vehicle domain controller, and the control module comprises a microprocessor, a storage unit, a LIN bus communication unit, a sensor data interface unit, a display control interface unit and a driving unit; the microprocessor is used for executing a regulation algorithm, mode switching logic and an abnormality protection mechanism; the storage unit is used for storing a gear-transmittance corresponding table, a current gear parameter s, a maximum gear parameter s max , and fault record data; the storage unit can also be used for temporarily storing collected sensor data and intermediate variables in a calculation process; the LIN bus communication unit is used for establishing communication with the physical manipulator module and receiving a control signal; the sensor data interface unit is used for connecting with a sunlight sensor, a rain sensor and a transmittance sensor of the vehicle and collecting ambient light intensity, rain amount and actual transmittance data; the display control interface unit is used for establishing communication with a rear screen and a vehicle instrument panel and sending a mode prompt signal and a fault prompt signal; and the driving unit is used for outputting a PWM control signal to an electrode of the dimming glass and controlling the transmittance of the dimming glass by adjusting a duty cycle of the PWM signal.

[0082] The transmittance detection module comprises a transmittance sensor, which is installed on the inner side of the dimming glass close to the edge to avoid blocking the user's view and is used for collecting actual transmittance data.

[0083] The mode prompt module comprises a rear screen and a vehicle instrument panel; when receiving the mode switching signal sent by the control module, the rear screen pops up a prompt box in the upper right corner of the screen, and the display content comprises “current mode: privacy mode (manual adjustment only)” or “current mode: sunshade mode (automatic adjustment + manual fine adjustment)”, and the display duration can be set through the vehicle central control system, and is generally 3-5 seconds, and the default is 3 seconds; when receiving the fault prompt signal, the vehicle instrument panel lights up a red fault indicator lamp in the vehicle state area of the instrument panel, and simultaneously scrolls and displays prompt text such as “dimming system fault, please repair” in the information display area of the instrument panel until the fault is eliminated.

[0084] In embodiment 3, a vehicle is provided, which comprises the automobile dimming glass adjusting device described above; the dimming glass in the automobile dimming glass adjusting device is installed on rear windows (including left rear windows, right rear windows and rear triangular windows) of the vehicle, and is not applied to front windows (including a front windshield, left front windows and right front windows) to avoid blocking the driver's view and ensure driving safety; the physical manipulator module of the automobile dimming glass adjusting device is installed on the front part of a central armrest box or a rear air conditioning control panel of the vehicle, so as to facilitate operation by rear passengers; the vehicle is provided with a sunlight sensor and a rain sensor, which can be installed below the inside rearview mirror of the front windshield.

[0085] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalent features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for adjusting the dimming glass of an automobile, characterized in that, Includes the following steps: Provides a physical control that can rotate 360° and be pressed down, used to receive user operations and send control signals; A control unit is provided, which is communicatively connected to the physical actuator to receive control signals sent by the physical actuator and control the transparency of the dimming glass; The system obtains a dimming mode selected by the user from two preset dimming modes, the dimming mode including privacy mode and blackout mode; The dimming control method is determined based on the selected dimming mode. The control methods include automatic control, manual control, and automatic plus manual control. Automatic dimming control based on data collected by sensors on the car; Manual control is achieved by mapping the operation of the physical actuator to the transparency of the dimming glass.

2. The method for adjusting automotive dimming glass according to claim 1, characterized in that, The physical control unit switches the dimming mode between privacy mode and light-blocking mode by receiving a long press operation from the user; the mapping relationship between the operation of the physical control unit and the transparency of the dimming glass includes the mapping relationship between the rotation of the physical control unit and the transparency of the dimming glass and the mapping relationship between the short press of the physical control unit and the transparency of the dimming glass. The mapping relationship between the rotation of the physical control component and the transparency of the dimming glass includes adjusting the transparency of the dimming glass according to the amount of rotation of the physical control component. The mapping relationship between the short press of the physical control and the transparency of the dimming glass includes that a short press of the physical control adjusts the transparency of the dimming glass to the highest or lowest light transmittance state.

3. The method for adjusting automotive dimming glass according to claim 2, characterized in that, The physical control mechanism has at least 10 settings per revolution, corresponding to the dimming glass's settings parameters. The control unit pre-stores the current settings parameter s of the dimming glass and the maximum settings parameter s supported by the dimming glass. max The transparency of the dimming glass is adjusted according to the rotation position of the physical control component; the physical control component receives the rotation amount of the user in one operation cycle in real time and encodes the rotation amount into a corresponding change signal Δs'. The physical control component determines the positive or negative attribute of the change signal Δs' according to its own preset position definition rules, and then sends the change signal Δs' to the control unit through the LIN bus. After receiving the change signal Δs', the control unit first decodes the signal to restore the actual corresponding gear increase / decrease Δs. Then, it retrieves the pre-stored current gear s and calculates the sum of the current gear s and the gear increase / decrease Δs, i.e., s+Δs.

4. The method for adjusting automotive dimming glass according to claim 3, characterized in that, The control unit adjusts the transparency of the dimming glass based on the calculated range of s+Δs, and the specific adjustment rules are as follows: If s+Δs<0, then the dimming glass setting will be locked to 0, and the transparency will be adjusted to the lowest light transmittance. If s + Δs ​​> s max The control unit will then lock the dimming glass to the s setting. max Adjust the transparency accordingly to the highest light transmittance. If 0 ≤ s + Δs ​​≤ s max If so, the control unit will set the dimming glass to the level of s+Δs and adjust the transparency to the light transmission state matched by that level.

5. The method for adjusting automotive dimming glass according to claim 3, characterized in that, When a user long-press operation is received, the physical control unit sends a long-press trigger signal to the control unit. After receiving the signal, the control unit controls the dimming glass to switch between privacy mode and sunshade mode. In the default state, the dimming glass is in privacy mode, which only allows manual control by rotating the physical control unit. In sunshade mode, based on data collected by sensors on the car, automatic and manual control can also be performed by rotating the physical control unit to perform fine-tuning operations.

6. The method for adjusting automotive dimming glass according to claim 5, characterized in that, The automatic control for dimming in shading mode includes, The control unit establishes a data communication connection with the vehicle's sunlight sensor and rain sensor to acquire ambient light intensity data and rainfall data collected by the sunlight sensor and rain sensor in real time. The control unit calculates the basic light transmittance based on the real-time acquired ambient light intensity data, and then adjusts the basic light transmittance in combination with the rainfall data to obtain the final light transmittance. Based on the final light transmittance, the control unit automatically adjusts the dimming glass's setting and corresponding transparency.

7. The method for adjusting automotive dimming glass according to claim 6, characterized in that, The automatic and manual control in shading mode to perform fine-tuning operations includes, The control unit receives and decodes the corresponding change signal Δs', calculates the fine-tuning increment Δs1, and superimposes the current automatically adjusted level with the fine-tuning increment Δs1 to obtain a new target level, thereby adjusting the transparency. At this time, the control unit continues to acquire data from the sunlight and rain sensors and update the basic transmittance target value. The new target level is always the superposition value of the level corresponding to the updated basic transmittance target value and the fine-tuning increment Δs1, so as to achieve a composite adjustment effect of automatic adjustment and manual offset. In sunshade mode, the physical control receives a second long press operation from the user and sends a second long press trigger signal to the control unit. After receiving the signal, the control unit controls the dimming glass to switch back to privacy mode and clears the manual fine-tuning increment Δs1 in sunshade mode, restoring the manual adjustment state in privacy mode.

8. The method for adjusting automotive dimming glass according to claim 7, characterized in that, A rear-seat screen is installed in the vehicle, and the control unit establishes a data communication connection with the rear-seat screen. When the dimming glass switches between privacy mode and sunshade mode, the control unit sends a mode switching signal to the rear-seat screen. After receiving the signal, the rear-seat screen displays the corresponding mode prompt information on the display interface. The prompt information includes the current mode name and an explanation of the adjustment rules in this mode. The prompt information disappears automatically after a set duration to avoid interfering with the user's viewing of the screen content.

9. A car dimming glass adjustment device, characterized in that, The apparatus for implementing the automotive dimming glass adjustment method according to any one of claims 1-8, the apparatus comprising: The physical control module is a knob or roller structure that can rotate 360°. It is used to detect the user's rotation and pressing operations and convert them into corresponding trigger signals, which are then sent through the LIN bus interface. The control module, which is a dimming glass controller or a vehicle domain controller, is communicatively connected to the physical control module. It is used to store preset information, receive control signals sent by the physical control module and sensors, send mode prompt signals and fault prompt signals, and control the light transmittance of the dimming glass. A transmittance detection module, which is communicatively connected to the control module, is used to detect the transmittance of the dimming glass and send the transmittance information to the control module; The mode prompt module includes a rear screen and a vehicle instrument panel, and is communicatively connected to the control module. It is used to receive mode switching signals sent by the control module and display relevant information on the rear screen and the vehicle instrument panel.

10. A vehicle, characterized in that, The device includes the automotive dimming glass adjustment device as described in claim 9; the dimming glass in the automotive dimming glass adjustment device is installed on the rear window of the vehicle; the vehicle is equipped with a sunlight sensor and a rain sensor.

Images