CN111660774A - Motor vehicle auxiliary device, motor vehicle and use method of auxiliary device - Google Patents
Motor vehicle auxiliary device, motor vehicle and use method of auxiliary device Download PDFInfo
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- CN111660774A CN111660774A CN202010557872.3A CN202010557872A CN111660774A CN 111660774 A CN111660774 A CN 111660774A CN 202010557872 A CN202010557872 A CN 202010557872A CN 111660774 A CN111660774 A CN 111660774A
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- dimming
- light intensity
- motor vehicle
- light
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
- B60J3/04—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles adjustable in transparency
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Abstract
The invention discloses a motor vehicle auxiliary device, a motor vehicle and a using method of the auxiliary device, wherein the motor vehicle window auxiliary device comprises: the dimming window film layer is used as a front windshield of the motor vehicle or is arranged on the inner surface or the outer surface of the front windshield of the motor vehicle and comprises a plurality of dimming glasses which are arranged along the vertical direction of the front windshield and are electrically insulated from each other; the light intensity detection module is arranged on the dimming car window film layer and is used for detecting the light intensity of light; the control module is used for calling a pre-stored dimming scheme matched with the detected light intensity in response to the detected light intensity, so that the control module inputs different control signals to at least part of the dimming glass respectively based on the dimming scheme and changes the transmittance of the at least part of the dimming glass. The invention can reduce the potential safety hazard of the driver in driving.
Description
Technical Field
The invention relates to the technical field of display. And more particularly to a motor vehicle accessory, a motor vehicle and a method of using the accessory.
Background
When a driver drives a motor vehicle to run on a highway, dazzling conditions are often caused by sunlight in the morning and at night, light emitted by lamps of oncoming motor vehicles or other objects, driving safety is probably influenced, and the sun visor of the automobile has a certain shielding effect.
Disclosure of Invention
In order to solve the technical problems set forth in the background art, a first aspect of the present invention provides a window assist apparatus for a motor vehicle, comprising:
the dimming window film layer is used as a front windshield of the motor vehicle or is arranged on the inner surface or the outer surface of the front windshield of the motor vehicle and comprises a plurality of dimming glasses which are arranged along the vertical direction of the front windshield and are electrically insulated from each other;
the light intensity detection module is arranged on the dimming car window film layer and is used for detecting the light intensity of light;
the control module is used for calling a pre-stored dimming scheme matched with the detected light intensity in response to the detected light intensity, so that the control module inputs different control signals to at least part of the dimming glass respectively based on the dimming scheme and changes the transmittance of the at least part of the dimming glass.
In one implementation, after the control module respectively inputs different control signals to at least part of the dimming glass based on the dimming, the light transmittance of the at least part of the dimming glass is gradually increased along a direction away from the roof of the motor vehicle.
In one implementation, the method further comprises:
the storage module is used for storing a plurality of dimming schemes in advance.
In one implementation, the method further comprises:
a plurality of digital-to-analog conversion modules in one-to-one correspondence with a plurality of dimming glasses electrically insulated from each other;
wherein the control module inputs a control signal to the light control glass through the data conversion module.
In one implementation, the data conversion module is electrically connected to the control module through an SPI serial interface.
In one implementation, the light intensity detection module is electrically connected with the control module through an IIC serial interface.
In one implementation, the method further comprises:
a plurality of power amplification modules in one-to-one correspondence with a plurality of dimming glasses electrically insulated from each other;
wherein the control module inputs a control signal to the light control glass through the power amplification module.
In one implementation, the method further comprises:
and the power supply module is used for providing working voltage for the control module.
A second aspect of the present invention provides a motor vehicle, comprising:
the invention in a first aspect proposes the motor vehicle accessory device.
A third aspect of the present invention provides a method for using the auxiliary device of the first aspect of the present invention, including the following steps:
the light intensity detection module detects the light intensity of the light;
the control module responds to the detected light intensity to call a pre-stored dimming scheme matched with the light intensity, so that the control module inputs different control signals to at least part of the dimming glass respectively based on the dimming scheme to change the transmittance of the at least part of the dimming glass.
The invention has the following beneficial effects:
the invention has the advantages of clear principle and simple design, and can correspondingly set different dimming schemes according to different light intensities, thereby correspondingly adjusting the transmittance of at least part of dimming glass in the film layer of the dimming car window, realizing the function of blocking light, avoiding manual operation on the sun shield, and reducing the potential safety hazard of driving of a driver.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a block diagram showing a structure of a window assistant apparatus for a motor vehicle according to an embodiment of the present invention;
fig. 2 shows a front view of a dimming glazing film in the present embodiment;
FIG. 3 is a diagram showing the light intensity versus the voltage value of the control signal in the present embodiment;
fig. 4 shows a light intensity-transmittance diagram in the present embodiment;
fig. 5 shows a front view of a dimming glazing film in the present embodiment;
fig. 6 is a schematic structural diagram illustrating a structure between the light control glass and the digital-to-analog conversion module in the present embodiment;
fig. 7 is a schematic structural diagram between the digital-to-analog conversion module and the power amplifier in the present embodiment;
fig. 8 is a schematic structural view of a motor vehicle according to another embodiment of the present invention;
fig. 9 shows a flow chart of a method for using the above-described power window assistance device according to another embodiment of the present invention.
Detailed Description
In order to make the technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a block diagram showing a configuration of a window assist apparatus for a motor vehicle according to an embodiment of the present invention, which includes, as shown in fig. 1: the dimming car window comprises a dimming car window film layer, a light intensity detection module and a control module.
Specifically, the dimming window film layer in the present embodiment may be used as a front windshield of a motor vehicle or be disposed on an inner or outer surface of the front windshield of the motor vehicle, fig. 2 shows a front view of the dimming window film layer in the present embodiment, as shown in fig. 2, the dimming window film layer includes a plurality of dimming glasses electrically insulated from each other and arranged vertically along the front windshield, where the dimming glasses may change their own transmittance according to magnitude of voltage after being powered on, it should be noted that, in fig. 2, the number of the dimming glasses in the dimming window film layer includes six (six dimming glasses are arranged in sequence in a direction away from a roof of the motor vehicle, where the dimming glass a is closer to the roof of the motor vehicle than the dimming glass B), while in the present embodiment, the number of the dimming glasses is not particularly limited, the number of the light control glasses in fig. 2 is only an example, and the number of the light control glasses can be set according to the size and dimension of the front windshield of the motor vehicle.
In this implementation, the light intensity detection module may adopt a digital light sensor with a model number of AP3216C, where the light intensity detection module is mainly used to detect the light intensity of light, and converts the light intensity into a corresponding digital quantity according to the specific size of the light intensity, where the light ray may include the light ray of sunlight, the light ray emitted by an oncoming car lamp or other objects, specifically, the range of the digital quantity may be between 0 and 65535, because the digital light sensor with the model number of AP3216C is the prior art, therefore, here, no description is given to the specific structure thereof, and it needs to be explained that the light intensity detection module may be installed on a dimming window film layer, for example, attached at the edge of the dimming window film layer close to the roof of a motor vehicle.
In this embodiment, the control module may adopt an MCU controller, and the control module is mainly configured to invoke a pre-stored dimming scheme matching with the light intensity in response to the light intensity detected by the light intensity detection module, so that the control module inputs different control signals to at least part of the dimming glasses based on the dimming scheme, and changes the transmittance of at least part of the dimming glasses, where the light intensity detection module may be electrically connected to the control module through an IIC serial interface, so that the light intensity detection module and the control module are communicatively connected, and when the light intensity detection module adopts a digital light sensor of model AP3216C, the digital light sensor electrically connects the SDA signal line, the SCL signal line, and the INT signal line to the control module, respectively.
It should be understood that the dimming scheme includes a plurality of dimming schemes, the plurality of dimming schemes respectively correspond to different light intensities, that is, different light intensities correspond to different dimming schemes, and each dimming scheme includes setting different voltage values of the control signal for at least a part of the dimming glass respectively, for example: when a driver drives a motor vehicle to drive in the daytime, the light intensity of sunlight is high, as shown in fig. 3 and 4, when the number is 60000, the voltage value of the control signal in the dimming scheme matched with the digital dimming glass is correspondingly large as a whole, and can be set between 4V and 6V, and the transmittance of the corresponding dimming glass is adjusted to be about 5%; when the driver drives the vehicle to run at night, the light intensity of the lamp of the oncoming vehicle is low, for example, when the digital quantity is 10000, the voltage value of the control signal in the dimming scheme matched with the lamp is correspondingly small as a whole, and can be set between 2V and 4V, and the transmittance of the corresponding dimming glass is adjusted to be about 60% -70%.
It should be noted that, in this embodiment, the control signal is generally a 60Hz square wave or sinusoidal signal, and the amplitude of the voltage value of the control signal may range from 0V to 24V, when the voltage value of the control signal input into one dimming glass is 0V, the transmittance of the dimming glass is the highest, and the gray scale is the smallest, and when the voltage value of the control signal is gradually increased, the transmittance of the dimming glass is gradually decreased, and the gray scale is increased, when the voltage value of the control signal input into one dimming glass is 24V, the transmittance of the dimming glass is the lowest, and the gray scale is the largest.
In order to store a plurality of dimming schemes, in this embodiment, the dimming control apparatus further includes a storage module, on one hand, the storage module may be specifically an individual component to store the plurality of dimming schemes, for example: on the other hand, the storage module and the control module may be integrated and configured, and in the specific implementation of the present embodiment, the storage module may store the plurality of dimming schemes and the light intensities corresponding to the plurality of dimming schemes one by one in a table manner.
When a driver drives a motor vehicle to run, due to the incident angle of light, the light incident through part of dimming glass of a film layer of a dimming window often causes dazzling of the driver;
for example, when the automobile is running in the daytime, the driver is often dazzled by the light of the sunlight incident on the light control glass at the upper half of the light control window film layer, so when the numerical quantity of the light intensity is small, the transmittance of the light control glass at the upper half of the light control window film layer, namely the light control glass a, the light control glass B and the light control glass C in fig. 5, can be correspondingly adjusted, so that the transmittance of the light control glass a, the light control glass B and the light control glass C is reduced, and the gray scale is correspondingly increased, therefore, not only the function of the light control glass at the upper half of the light control window film layer replacing the sun shield can be realized, but also the transmittance of the light control glass at the lower half of the light control window film layer, namely the light control glass D, the light control glass E and the light control glass F in fig. 5, can be not influenced, and the light control glass, Dimming glass E and dimming glass F keep high transmissivity to do not influence the sight of driving, be convenient for see the road conditions clearly, and when the digital quantity of light intensity was great, then can adjust all dimming glass.
In conclusion, in this embodiment, different dimming schemes can be correspondingly set according to different light intensity levels, so that the transmittance of at least part of dimming glass in the dimming window film layer can be correspondingly adjusted, the function of blocking light rays is realized, manual operation on the sun shield is omitted, and the potential safety hazard of driving of a driver is reduced.
In one implementation, after the control module respectively inputs different control signals to at least part of the dimming glass based on the dimming, the light transmittance of the at least part of the dimming glass is gradually increased along a direction away from the roof of the motor vehicle.
Specifically, in this embodiment, during the driving of the motor vehicle, due to different irradiation angles of light, the light intensity of the light received by the plurality of light control glasses in the vertical direction of the front windshield gradually decreases along the direction away from the roof of the motor vehicle, that is, in fig. 5, the light intensity of the light received by the light control glass a is the largest, and the light intensity of the light received by the corresponding light control glass F is the smallest, so that by this rule, the voltage value of the control signal of the light control glass at least partially requiring transmittance adjustment can be gradually decreased along the direction away from the roof of the motor vehicle, so that the transmittance of the adjusted light control glass can gradually increase along the direction away from the roof of the motor vehicle, and the transmittance of the adjusted light control glass is in a gradual change form, thereby further improving the visual perception of the driver.
In one implementation, the motor vehicle window assist device further includes:
a plurality of digital-to-analog conversion modules in one-to-one correspondence with a plurality of dimming glasses electrically insulated from each other;
wherein the control module inputs a control signal to the light control glass through the data conversion module.
In this embodiment, the digital-to-analog conversion modules correspond to the dimming glasses one to one, in the example of fig. 6, the dimming glasses are six in number, and then the digital-to-analog conversion modules are also six in number, and the digital-to-analog conversion modules can adopt a pulseless voltage output digital-to-analog converter of the type LTC2641 to realize the output of the positive and negative 24V voltages, and the data conversion modules can be electrically connected to the control module through a 50mhz spi serial interface, so as to realize the data transmission between the control module and the data conversion modules.
In one implementation, the motor vehicle window assist device further includes:
a plurality of power amplification modules in one-to-one correspondence with a plurality of dimming glasses electrically insulated from each other;
wherein the control module inputs a control signal to the light control glass through the power amplification module
In the present embodiment, the power amplification modules correspond to the number of the dimming glasses one to one, and in the example of fig. 7, if the number of the dimming glasses is six, the number of the power amplification modules is also six, and the power amplification modules may adopt power amplifiers.
In one implementation, as shown in fig. 7, the power window assistance device further includes:
and the power supply module is used for providing working voltage for the control module.
In this embodiment, the power module may employ a 24V dc power supply, and the power module is mainly used to provide a corresponding operating voltage for the control module, and the power supply may employ a dc power supply, where the power supply may also provide a corresponding operating voltage for the power amplifier, for example, in fig. 7, the power module provides an operating voltage of 3.3V for the control module, and provides an operating voltage of ± 24V for the power amplification module.
Fig. 8 shows a schematic structural view of a motor vehicle according to another embodiment of the present invention, as shown in fig. 8, including the above-described window assist device.
Fig. 9 shows a flow chart of a method of using the above-described power window assistance device according to another embodiment of the present invention, as shown in fig. 9, the method of using the power window assistance device includes the following steps:
the light intensity detection module detects the light intensity of light;
the control module responds to the detected light intensity to call a pre-stored dimming scheme matched with the light intensity, so that the control module inputs different control signals to at least part of the dimming glass respectively based on the dimming scheme to change the transmittance of the at least part of the dimming glass.
Next, the present embodiment is further described with reference to an actual application scenario, when a driver prepares to drive a vehicle shown in fig. 9, a dimming window film layer installed on the vehicle is in an initial state (without illumination), and when the driver drives the vehicle to travel on a highway, the light intensity detection module may detect the light intensity of light in real time and generate a digital quantity corresponding to the light intensity, and the control module invokes a corresponding dimming scheme based on the digital quantity to correspondingly adjust the transmittance of the dimming window film layer of the vehicle, so that the dimming window film layer installed on the vehicle is in an adjusted state (as shown in fig. 5), thereby implementing a light blocking function, avoiding manual operation on the sun visor, and reducing the potential safety hazard of driver driving.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.
Claims (10)
1. An automotive window assist device, comprising:
the dimming window film layer is used as a front windshield of the motor vehicle or is arranged on the inner surface or the outer surface of the front windshield of the motor vehicle and comprises a plurality of dimming glasses which are arranged along the vertical direction of the front windshield and are electrically insulated from each other;
the light intensity detection module is arranged on the dimming car window film layer and is used for detecting the light intensity of light;
the control module is used for calling a pre-stored dimming scheme matched with the detected light intensity in response to the detected light intensity, so that the control module inputs different control signals to at least part of the dimming glass respectively based on the dimming scheme and changes the transmittance of the at least part of the dimming glass.
2. Auxiliary device according to claim 1,
after the control module respectively inputs different control signals to at least part of the dimming glass based on the dimming, the light transmittance of the at least part of the dimming glass is gradually increased along the direction far away from the roof of the motor vehicle.
3. Auxiliary device according to claim 1,
further comprising:
the storage module is used for storing a plurality of dimming schemes in advance.
4. Auxiliary device according to claim 1,
further comprising:
a plurality of digital-to-analog conversion modules in one-to-one correspondence with a plurality of dimming glasses electrically insulated from each other;
wherein the control module inputs a control signal to the light control glass through the data conversion module.
5. Auxiliary device according to claim 4,
the data conversion module is electrically connected with the control module through an SPI serial interface.
6. Auxiliary device according to claim 1,
the light intensity detection module is electrically connected with the control module through an IIC serial interface.
7. Auxiliary device according to claim 1,
further comprising:
a plurality of power amplification modules in one-to-one correspondence with a plurality of dimming glasses electrically insulated from each other;
wherein the control module inputs a control signal to the light control glass through the power amplification module.
8. Auxiliary device according to claim 1,
further comprising:
and the power supply module is used for providing working voltage for the control module.
9. A motor vehicle, comprising:
the automotive accessory device of any one of claims 1-8.
10. Use of an aid according to any of claims 1-8, characterized in that it comprises the following steps:
the light intensity detection module detects the light intensity of the light;
the control module responds to the detected light intensity to call a pre-stored dimming scheme matched with the light intensity, so that the control module inputs different control signals to at least part of the dimming glass respectively based on the dimming scheme to change the transmittance of the at least part of the dimming glass.
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| CN202010557872.3A CN111660774B (en) | 2020-06-18 | 2020-06-18 | Motor vehicle auxiliary device, motor vehicle and use method of auxiliary device |
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| CN202010557872.3A CN111660774B (en) | 2020-06-18 | 2020-06-18 | Motor vehicle auxiliary device, motor vehicle and use method of auxiliary device |
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| CN111660774B CN111660774B (en) | 2022-09-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114148148A (en) * | 2021-12-20 | 2022-03-08 | 上汽通用汽车有限公司 | Regional independently-regulated and controlled dimming roof glass system and vehicle comprising same |
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