CN113085724A - Unified adjusting method for brightness of automobile background light - Google Patents
Unified adjusting method for brightness of automobile background light Download PDFInfo
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- CN113085724A CN113085724A CN202110303063.4A CN202110303063A CN113085724A CN 113085724 A CN113085724 A CN 113085724A CN 202110303063 A CN202110303063 A CN 202110303063A CN 113085724 A CN113085724 A CN 113085724A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/10—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for dashboards
- B60Q3/16—Circuits; Control arrangements
- B60Q3/18—Circuits; Control arrangements for varying the light intensity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/20—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for lighting specific fittings of passenger or driving compartments; mounted on specific fittings of passenger or driving compartments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/80—Circuits; Control arrangements
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Abstract
A unified regulation control method for the brightness of the background light of an automobile is characterized in that the brightness of an indoor work indicator light and the brightness of the background light of the whole automobile are uniformly regulated through a body system BCM (body control module), the regulation of the brightness of the indoor work indicator light and the brightness of the background light of the whole automobile comprise a day mode and a night mode, and the indoor work indicator light and the regulation of the brightness of the background light of the whole automobile are distinguished according to whether a position light is lighted or not, the position light is in the day; the state of the position lamp and the background brightness adjusting signal are output by the BCM of the vehicle body control system to each execution module to adjust the working indicator lamp and the background brightness of each module in the current mode: when the background brightness setting switch of the entertainment system is in an on state and the position lamp is in an off state, the background light of the whole vehicle is lightened according to the brightness of a daytime mode; when the entertainment system background light brightness setting switch is in an on state and the position lamp is in an on state, the whole vehicle background light is lightened according to the brightness in the night mode. The problem of the prior art background luminance is not adjustable or the effect that the background luminance adjustment realized is poor is solved.
Description
Technical Field
The invention relates to an automobile electronic application technology, in particular to a method for adjusting brightness of an automobile background light.
Background
In recent years, with the diversification of the requirements of automobile users, the comfort level requirements of the automobile users on the light in the automobile are higher and higher, and the brightness of the automobile work indicator light and the background light is gradually set to be adjustable; because the customer is different to whole car background light luminance demand, so need can adjust the background light luminance, go to better use experience for the user. In the prior art, the method for adjusting the background light brightness is single, the effect of adjusting the background light brightness can be realized is limited, and the requirements of automobile users on quality feeling can not be fully met.
Chinese invention patent CN201610159221.2 proposes a backlight adjusting method for an automobile, in which a backlight adjusting switch of the automobile outputs a backlight brightness signal according to a user's instruction; the instrument collects the backlight brightness signal and processes the backlight brightness signal to generate a backlight brightness value; the instrument adjusts the backlight brightness of the instrument according to the backlight brightness value and sends the backlight brightness value to a CAN network of the automobile; the vehicle body controller is communicated with the instrument through a CAN network to receive the backlight brightness value and generates a backlight brightness adjusting signal according to the backlight brightness value to adjust the backlight brightness of the backlight area of the vehicle, wherein in the process that the vehicle body controller generates the backlight brightness adjusting signal according to the backlight brightness value to adjust the backlight brightness of the backlight area of the vehicle, if the vehicle body controller loses the backlight brightness value or receives the backlight invalid signal, the vehicle body controller controls the backlight brightness of the backlight area of the vehicle to keep the current brightness value until the position light switch is turned off or receives the backlight brightness value sent by the instrument. The backlight adjusting system enables the adjustment of instrument backlight to be more independent and reliable, the vehicle body controller drives the whole vehicle key backlight in a unified manner according to the backlight brightness value sent by the instrument, the whole vehicle key backlight lighting scenes are synchronous and unified, and therefore user experience is improved.
Disclosure of Invention
The invention provides a unified adjusting method for the brightness of the automobile background light, aiming at the defects of the prior art, and the unified adjusting method can effectively solve the problems that the brightness of the background light is not adjustable or the effect of adjusting the brightness of the background light is poor in the prior art.
The technical scheme adopted by the invention is as follows:
a unified regulation control method for the brightness of the background light of an automobile is characterized in that the brightness of an indoor working indicator light and the brightness of the background light of the whole automobile are uniformly regulated through a body system BCM (body control module), the regulation of the brightness of the indoor working indicator light and the brightness of the background light of the whole automobile comprises a day mode and a night mode, the day mode and the night mode are distinguished according to whether a position light is lighted or not, the day mode is the day mode when the position light is not lighted, and the night mode when the position light is lighted; the state of the position lamp and the background brightness adjusting signal are output by the BCM of the vehicle body control system to each execution module to adjust the working indicator lamp and the background brightness of each module in the current mode: when the background brightness setting switch of the entertainment system is in an on state and the position lamp is in an off state, the background light of the whole vehicle is lightened according to the brightness of a daytime mode; when the entertainment system background light brightness setting switch is in an on state and the position lamp is in an on state, the whole vehicle background light is lightened according to the brightness of the night mode.
The method for uniformly adjusting and controlling the brightness of the background light of the automobile judges the daytime or night state through the daytime and night state voltage signal and the position lamp state CAN signal output by the automobile body system, and uniformly adjusts the brightness of the background light of the whole automobile through the background light brightness adjusting signal and the PWM signal output by the BCM of the automobile body control system:
the brightness of the work indicator lamp is adjusted: the position lamp state signal output by the BCM is in an OFF state, and is in a daytime mode, the brightness of each working indicator lamp can be enhanced by each execution module (an air conditioner panel, a switch, an instrument IC, a gear shifter SCU and a blind area monitoring BSD), and the brightness of each working indicator lamp can be weakened by each execution module in a night mode when the position lamp state signal output by the BCM is in an ON state;
adjusting the brightness of the background light: the background light brightness is uniformly set through a background light brightness adjusting switch in the entertainment system IVI; in the daytime mode, the background light brightness of the entertainment system IVI and the combination instrument IC can be only adjusted, and in the night mode, the background light brightness level of the whole vehicle can be adjusted.
According to the unified regulation and control method for the automobile background light brightness, the background light brightness is set through a background light gear regulation soft switch in the IVI, and a BCM (body controller) outputs a background light brightness regulation signal to a corresponding execution module to execute brightness regulation; the entertainment system IVI is used to set the background light level while also performing the background light level of the BCM input.
According to the method for uniformly adjusting and controlling the brightness of the automobile background light, a whole automobile background light brightness gear adjusting switch is arranged on an automobile body setting interface of an entertainment system IVI, the number of background light brightness adjusting gears is 30, and each gear is associated with the brightness percentage of the corresponding gear of the corresponding background light, the brightness value in a daytime mode, the brightness value in a night mode, the PWM wave duty ratio in the night mode and the PWM high-level time sent by an automobile body controller.
The invention has the beneficial effects that:
1. the method for uniformly adjusting the brightness of the automobile background light distinguishes day and night modes by judging whether the position lamp is lighted or not, and then adjusts the brightness of the work indicator lamp and the background light in the two modes through the automobile body controller. Can effectively solve the following problems: the illumination intensity is brighter in the daytime, so that the user can conveniently identify the work indicator lamps with higher brightness, and the illumination intensity is darker at night so as to avoid dazzling user demands. The backlight lamp can present different brightness effects in the day and night mode through simple operation.
2. The method for uniformly adjusting the brightness of the background light of the automobile can solve the problems that the illumination intensity is brighter in the daytime and requires higher brightness of each work indicator light to be convenient for a user to identify, the illumination intensity is darker in the night, the brightness of each work indicator light is required to be darker to avoid dazzling requirements, the different requirements of customers on the brightness of the background light of the whole automobile can be met, and the brightness of the background light can be adjusted according to the requirements of the customers.
3. According to the method for uniformly adjusting the brightness of the automobile background light, the background light and the work indication brightness are adjusted to distinguish day and night modes, the background light brightness is adjusted in a uniform adjusting mode, and the number of adjustable gears is 30. The user can adjust the brightness of the whole vehicle background light according to the self requirement, so that the brightness of the whole vehicle background light reaches the self required brightness, and the requirements of the vehicle user on comfortableness and driving experience are fully met.
4. The method for uniformly adjusting the brightness of the automobile background light sets a processing mechanism of node signal loss or signal invalidation. When the background light brightness signal sent by the automobile body controller is lost or invalid, the instrument and the entertainment system need to maintain the latest valid value brightness in the current ignition cycle, the instrument and the entertainment system are powered on next time, and if the background light brightness signal sent by the automobile body controller is still lost or invalid, the instrument and the entertainment system recover the default brightness. And when the vehicle body controller monitors that the entertainment system node is lost, the vehicle body controller maintains the current brightness transmission in the current ignition cycle, and the vehicle body control system transmits the current brightness according to the memorized backlight brightness after next power-on. The abnormity processing mechanism can effectively solve the problem that when the system is abnormal, the background light of the whole vehicle can still work according to the set brightness, and meanwhile, the user experience is considered.
Drawings
FIG. 1 is an interactive block diagram of the work indicator light of the present invention with background light intensity adjustment;
FIG. 2 is a schematic view of the work indication brightness adjustment of the present invention;
fig. 3 is a table of the background light brightness adjustment gear levels according to the present invention.
Detailed Description
The technical solution of the present invention is further described in detail below by means of specific embodiments and with reference to the accompanying drawings.
Example 1
According to the method for uniformly adjusting and controlling the brightness of the automobile background light, the brightness of an indoor working indicator light and the brightness of the whole automobile background light are uniformly adjusted through a body system BCM (body control module), the brightness adjustment of the indoor working indicator light and the brightness adjustment of the whole automobile background light comprise a day mode and a night mode, the day mode and the night mode are distinguished according to whether a position light is lightened or not, the day mode is adopted when the position light is not lightened, and the night mode is adopted when the position light is lightened; the state of the position lamp and the background brightness adjusting signal are output by the BCM of the vehicle body control system to each execution module to adjust the working indicator lamp and the background brightness of each module in the current mode: when the background brightness setting switch of the entertainment system is in an on state and the position lamp is in an off state, the background light of the whole vehicle is lightened according to the brightness of a daytime mode; when the entertainment system background light brightness setting switch is in an on state and the position lamp is in an on state, the whole vehicle background light is lightened according to the brightness of the night mode. The user can adjust the brightness of the whole vehicle background light according to the self requirement, so that the brightness of the whole vehicle background light reaches the self required brightness, and the requirements of the vehicle user on comfortableness and driving experience are fully met.
Example 2
The method for uniformly adjusting and controlling the brightness of the automobile background light is different from the embodiment in that: further, the daytime or night state is judged through the daytime and night state voltage signal and the position lamp state CAN signal of automobile body system output, and the background brightness adjusting signal and the PWM signal output by the automobile body control system BCM are used for uniformly adjusting the background brightness of the whole automobile:
the brightness of the work indicator lamp is adjusted: the position lamp state signal output by the BCM is in an OFF state, and is in a daytime mode, the brightness of each working indicator lamp can be enhanced by each execution module (an air conditioner panel, a switch, an instrument IC, a gear shifter SCU and a blind area monitoring BSD), and the brightness of each working indicator lamp can be weakened by each execution module in a night mode when the position lamp state signal output by the BCM is in an ON state;
adjusting the brightness of the background light: the background light brightness is uniformly set through a background light brightness adjusting switch in the entertainment system IVI; in the daytime mode, the background light brightness of the entertainment system IVI and the combination instrument IC can be only adjusted, and in the night mode, the background light brightness level of the whole vehicle can be adjusted.
According to the unified regulation and control method for the automobile background light brightness, the background light brightness is set through a background light gear regulation soft switch in the IVI, and a BCM (body controller) outputs a background light brightness regulation signal to a corresponding execution module to execute brightness regulation; the entertainment system IVI is used to set the background light level while also performing the background light level of the BCM input.
Example 3
The difference between the unified adjusting and controlling method for the brightness of the automobile background light in the embodiment and the embodiments 1 and 2 is that:
the common points of the brightness adjustment of the work indicator light and the brightness adjustment of the background light are as follows: the day and night modes are distinguished by judging the on state of the position lamp. The difference is as follows: the brightness of the working indicator lamp cannot be set through IVI, two brightness states of day and night are defaulted, the brightness of the working indicator lamp in a day mode is defaulted to be 70%, and the brightness of the working indicator lamp in a night mode is defaulted to be 30%; the background light brightness can be set and adjusted through the IVI, and the set background light brightness gears are 30 gears in total.
Example 4
The method for uniformly adjusting and controlling the brightness of the automobile background light in the embodiment is different from the previous embodiments in that: the brightness adjustment of the background light is 30 gears in total, and the brightness percentage of the corresponding gear of the background light, the brightness value in the daytime mode, the brightness value in the night mode, the PWM wave duty ratio in the night mode and the PWM high-level time sent by the vehicle body controller are related under each gear. The brightness percentage range of the background light in the day and night mode is as follows: 6% -100%; the luminance value range in the daytime mode is as follows: 43-850, the gray scale value range in the night mode is: 43-689; the duty ratio is a PWM wave duty ratio, and the percentage range of the duty ratio in the night mode is as follows: 6% -100%.
The invention relates to a unified adjusting method for the brightness of the automobile background light, wherein parameters related to each gear can ensure that the brightness of the background light is changed linearly in the adjusting process: that is, the brightness of the adjusted background light is changed step by step from the current brightness to the target brightness in fixed step and fixed time interval. The brightness of the working indicator lamp is adjusted to be in two brightness states of day and night by default, the brightness of the working indicator lamp in the day mode is 70% by default, and the brightness of the working indicator lamp in the night mode is 30% by default.
Example 5
The method for uniformly adjusting and controlling the brightness of the automobile background light in the embodiment is different from the previous embodiments in that: the BCM of the vehicle body system has a memory function, and the BCM can memorize the current background light brightness all the time; when the BCM monitors that the IVI node is lost, the BCM maintains current brightness transmission in the current ignition cycle, and the BCM is powered on next time and is transmitted to each execution module according to the memorized backlight brightness.
Example 6
The method for uniformly adjusting and controlling the brightness of the automobile background light in the embodiment is different from the previous embodiments in that: the system has a signal node signal loss processing mechanism, when a background brightness signal sent by a BCM of a vehicle body system is lost or invalid, an instrument and an IVI in a current ignition cycle need to maintain the latest valid value brightness, the instrument and the IVI are electrified next time, and if the background brightness signal sent by the BCM is still lost or invalid, the instrument and the IVI restore the default brightness, and the default brightness is 100%.
Referring to fig. 1-3, fig. 1 is a block diagram of a control system for an interaction logic that satisfies the uniform adjustment of the brightness of the backlight of the vehicle according to the present invention. The method for uniformly adjusting and controlling the brightness of the automobile background light is realized through the interactive logic among the modules.
Referring to fig. 1, the control system mainly includes: a body control system BCM; the execution system mainly comprises: the system comprises a front air-conditioning panel, a background light brightness adjusting output switch, a rear air-conditioning panel RACM, a combination instrument IC, a gear shifter module SCU, a blind area monitoring BSD and an entertainment system IVI. The air conditioner panel and various switches are connected with the BCM through hard wires and are realized by outputting daytime and night state voltage signals and background light state PWM signals through the BCM. The rear air-conditioning panel RACM, the instrument IC, the gear shifter SCU and the blind area monitoring module BSD are in a network communication message interaction with the vehicle body system BCM through the CAN bus, and in a hard-wire connection mode of the vehicle body control system BCM, the air-conditioning panel and various switches.
The BCM is used for identifying the state of the position lamp and the setting state of the IVI background light brightness of the entertainment system and outputting corresponding control instructions to each module to adjust the working indicator lamp or the background light brightness;
the entertainment system IVI is used for setting the brightness of the background light, and meanwhile, the entertainment system IVI is also used for executing a background light brightness adjusting instruction sent by the vehicle body controller BCM to adjust the background light brightness of the entertainment system IVI;
the air conditioner panel and various switches are used for receiving the dimming instruction output by the BCM and executing the dimming instruction according to the corresponding working instruction;
and the rear air-conditioning panel RACM, the instrument IC, the gear shifter SCU and the blind area monitoring BSD are used for receiving the position lamp state and the background light brightness adjusting CAN network instruction output by the BCM of the vehicle body and executing according to the corresponding working instruction.
The signal of the work indicator light brightness adjustment is divided into a CAN signal and a hard wire signal. The CAN signal is a position lamp state CAN signal sent by the BCM; the hard wire signal is a daytime and night state voltage signal which is output to the CAN execution module by the BCM through the hard wire.
The signal for adjusting the background light brightness is divided into a CAN signal and a hard wire signal. The CAN signal is a position lamp state CAN signal and a background light brightness adjusting CAN signal which are sent by the BCM; the hard wire signal is a background light brightness PWM signal which is output to the CAN execution module by the BCM through the hard wire.
In fig. 1, a left dashed line frame indicates a brightness adjustment mode of the operation indicator lamp, and the brightness of each module operation indicator lamp is adjusted according to a position lamp state signal output by the vehicle body controller BCM. When the BCM output position lamp is in an on state, the night mode is represented, the brightness of each working indicator lamp is adjusted to be 30%, when the BCM output position lamp is in an off state, the day mode is represented, and the brightness of each working indicator lamp is adjusted to be 70%. The brightness adjustment of the working indicator light is only related to the state of the position light, and the brightness level is only two kinds of brightness in a day/night mode.
In fig. 1, a right dashed line frame represents interactive logic of background light brightness setting and adjustment, the vehicle background light brightness adjustment distinguishes a day and night mode, only the background light brightness of the combination instrument IC and the entertainment system IVI can be adjusted in the day mode, and the brightness of all the background light of the vehicle can be adjusted in the night mode. The brightness level adjustment of the background light is realized by uniformly adjusting a background light brightness adjusting soft switch in the entertainment system IVI.
Fig. 2 is a schematic diagram of the present invention for adjusting the brightness of the work light through hard-wired connection. The position lamp state is output through a PIN foot of a BCM hardware interface of the automobile body controller, a ground signal is output in the daytime, and disconnection is performed at night. The LED3 is an operation indicator, the LED4 is a backlight indicator, the ILL is a PWM signal input to the backlight (+), and the INT is an operation indicator signal (ground).
Fig. 3 is a table showing the adjustment levels of the brightness of the background light according to the present invention. The brightness of the background light is adjusted to be 30 gears, and the brightness percentage of the gear corresponding to the background light, the brightness value in the daytime mode, the brightness value in the night mode, the PWM wave duty ratio in the night mode and the PWM high-level time sent by the vehicle body controller are related to each gear. By relating these parameters, the brightness of the background light can be changed linearly during the adjustment process: that is, the brightness of the adjusted background light is changed step by step from the current brightness to the target brightness in fixed step and fixed time interval. The situation that the brightness jumps directly to present a sharp feeling to the user, the flicker phenomenon occurs when the brightness is adjusted continuously, and the user experience feeling is poor can be avoided.
According to the invention, through increasing indoor background light, distinguishing the brightness of the work indicator lamps in daytime and night modes and uniformly adjusting the brightness of the background light of the whole vehicle through the BCM of the vehicle body system, the problems that the illumination intensity in daytime is brighter, the brightness of each work indicator lamp is needed to be higher for a user to recognize, the illumination intensity at night is darker, and the brightness of each work indicator lamp is needed to avoid dazzling can be solved, meanwhile, the difference of the requirements of the customer on the brightness of the background light of the whole vehicle can be met, and the brightness of the background light can be adjusted according to the.
Claims (9)
1. A unified regulation and control method for the brightness of an automobile background light is characterized by comprising the following steps: the brightness of the indoor work indicator light and the brightness of the whole vehicle background light are uniformly adjusted through a vehicle body system BCM, the brightness adjustment of the indoor work indicator light and the whole vehicle background light comprises a day mode and a night mode, the day mode and the night mode are distinguished according to whether the position light is lightened or not, the day mode is adopted when the position light is not lightened, and the night mode is adopted when the position light is lightened; the state of the position lamp and the background brightness adjusting signal are output by the BCM of the vehicle body control system to each execution module to adjust the working indicator lamp and the background brightness of each module in the current mode: when the background brightness setting switch of the entertainment system is in an on state and the position lamp is in an off state, the background light of the whole vehicle is lightened according to the brightness of a daytime mode; when the entertainment system background light brightness setting switch is in an on state and the position lamp is in an on state, the whole vehicle background light is lightened according to the brightness of the night mode.
2. The method for uniformly adjusting and controlling the brightness of the background light of the automobile according to claim 1, wherein: daytime or night state is judged to daytime or night state through the daytime night state voltage signal of automobile body system output and position lamp state CAN signal, and the background luminance regulation signal and the PWM signal of automobile body control system BCM output carry out and unify the whole car background luminance of adjusting:
the brightness of the work indicator lamp is adjusted: the position lamp state signal output by the BCM is in an OFF state, and is in a daytime mode, the brightness of each working indicator lamp can be enhanced by each execution module (an air conditioner panel, a switch, an instrument IC, a gear shifter SCU and a blind area monitoring BSD), and the brightness of each working indicator lamp can be weakened by each execution module in a night mode when the position lamp state signal output by the BCM is in an ON state;
adjusting the brightness of the background light: the background light brightness is uniformly set through a background light brightness adjusting switch in the entertainment system IVI; in the daytime mode, the background light brightness of the entertainment system IVI and the combination instrument IC can be only adjusted, and in the night mode, the background light brightness level of the whole vehicle can be adjusted.
3. The method for uniformly adjusting and controlling the brightness of the background light of the automobile as claimed in claim 2, wherein: setting the background light brightness through a background light gear adjusting soft switch in the IVI, and outputting a background light brightness adjusting signal to a corresponding execution module by the BCM to execute brightness adjustment; the entertainment system IVI is used to set the background light level while also performing the background light level of the BCM input.
4. The method for uniformly adjusting and controlling the brightness of the background light of the automobile according to claim 3, wherein: the entertainment system IVI vehicle body setting interface is provided with a whole vehicle background light brightness gear adjusting switch, the background light brightness adjusting gear is 30 gears in total, and each gear is associated with the brightness percentage of the corresponding gear of the corresponding background light, the brightness value in the daytime mode, the brightness value in the night mode, the PWM wave duty ratio in the night mode and the time for the vehicle body controller to send the PWM high level.
5. The method for uniformly adjusting the brightness of the background light of the automobile as claimed in claim 4, wherein: the brightness percentage range of the background light in the day and night mode is: 6% -100%; the luminance value range in the daytime mode is as follows: 43-850, the gray scale value range in the night mode is: 43-689; the duty ratio is a PWM wave duty ratio, and the percentage range of the duty ratio in the night mode is as follows: 6% -100%.
6. The method for uniformly adjusting the brightness of the background light of an automobile as claimed in claim 5, wherein the parameters associated with each gear are such that the brightness of the background light changes linearly during the adjustment process: that is, the brightness of the adjusted background light is changed step by step from the current brightness to the target brightness in fixed step and fixed time interval.
7. The method for uniformly adjusting the brightness of the background light of the automobile according to the claims 2, 3, 4 or 5, wherein: the brightness of the working indicator lamp is adjusted to be in two brightness states of day and night by default, the brightness of the working indicator lamp in the day mode is 70% by default, and the brightness of the working indicator lamp in the night mode is 30% by default.
8. The method for uniformly adjusting the brightness of the background light of the automobile according to any one of claims 2 to 6, wherein: the BCM has a memory function, and the BCM can memorize the current background brightness all the time; when the BCM monitors that the IVI node is lost, the BCM maintains current brightness transmission in the current ignition cycle, and the BCM is powered on next time and is transmitted to each execution module according to the memorized backlight brightness.
9. The method for uniformly adjusting the brightness of the background light of the automobile according to any one of claims 2 to 6, wherein: the system has a signal node signal loss processing mechanism, when a background brightness signal sent by a BCM of a vehicle body system is lost or invalid, an instrument and an IVI in a current ignition cycle need to maintain the latest valid value brightness, the instrument and the IVI are electrified next time, and if the background brightness signal sent by the BCM is still lost or invalid, the instrument and the IVI restore the default brightness, and the default brightness is 100%.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114132273A (en) * | 2021-10-27 | 2022-03-04 | 江铃汽车股份有限公司 | Backlight brightness control method and system and automobile |
| CN114242002A (en) * | 2021-11-18 | 2022-03-25 | 岚图汽车科技有限公司 | Backlight brightness adjusting system and method for automobile central panel |
| CN114248708A (en) * | 2021-12-08 | 2022-03-29 | 一汽奔腾轿车有限公司 | Intelligent control method and system for vehicle switch backlight |
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