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Automobile instrument self-adaptive backlight control system and method

A technology for automotive instrumentation and backlight control, which is applied in the direction of instrument panel lighting equipment, instruments, static indicators, etc. It can solve problems that affect driving safety, poor driving experience, and blurred screen failures, so as to avoid the phenomenon of blurred screens and ensure driving safety. , the effect of prolonging the service life

Pending Publication Date: 2021-12-28
HUIZHOU DESAY SV AUTOMOTIVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The content of the present invention is to provide an adaptive backlight control system and method for automotive instruments, which mainly solves the problem that the existing instrument panel backlight control uses setting menus and small light signals for adjustment, but the adaptive dimming effect of this method is not related to driving. The experience is poor. At the same time, the existing backlight display technology is prone to blurred screen failures when exposed to high temperature environments, which leads to problems that affect driving safety.

Method used

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  • Automobile instrument self-adaptive backlight control system and method
  • Automobile instrument self-adaptive backlight control system and method
  • Automobile instrument self-adaptive backlight control system and method

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Embodiment 1

[0051] Such as figure 1 and figure 2As shown, in order to solve the above-mentioned problems, the present embodiment proposes an adaptive backlight control system for automobile instrument, which mainly includes a vehicle body controller connected with the automobile instrument system; The configuration module and the display screen are connected in communication with the single-chip computer; the vehicle body controller includes a second single-chip computer and a light sensor connected in communication with the second single-chip computer.

[0052] Among them, the light sensor is used to obtain the ambient light intensity and send it to the second single-chip microcomputer; the second single-chip computer is used to send the ambient light intensity to the configuration module; the configuration module is used to obtain the ambient light intensity; It is used to store the backlight level and temperature change parameters; it is also used to store the screen temperature of t...

Embodiment 2

[0067] Such as figure 2 and image 3 As shown, in order to solve the foregoing problems, the present embodiment proposes a method for adaptive backlight control of an automobile instrument, which mainly includes the following steps:

[0068] S1, obtain the screen temperature and temperature change parameters of the display screen, collect the ambient light intensity and illuminance, and obtain the duty cycle of the PWM signal under the current ambient light intensity and illuminance;

[0069] S2, according to the screen temperature and temperature change parameters, determine the current temperature control range of the display screen;

[0070] S3, adjusting the duty cycle of the PWM signal according to the preset logic according to the temperature control range.

[0071] Preferably but not limited to, the acquisition order of the screen temperature, temperature change parameters, ambient light intensity and duty cycle of the PWM signal in step S1 in this embodiment is not ...

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Abstract

The invention relates to the technical field of automobile instrument panel control, in particular to an automobile instrument self-adaptive backlight control system and method. The control system comprises an automobile body controller which is in communication connection with an automobile instrument system, wherein the automobile instrument system comprises a first single-chip microcomputer, and a configuration module and a display screen which are in communication connection with the first single-chip microcomputer; and the automobile body controller comprises a second single-chip microcomputer, and an illumination sensor in communication connection with the second single-chip microcomputer. The automobile instrument self-adaptive backlight control system and method solve the problems that the existing instrument panel backlight control adopts a setting menu and a small lamp signal for adjustment, but the mode is relatively poor in self-adaptive dimming effect and driving experience, and the driving safety is influenced since the existing backlight display technology is easy to cause a blurred screen fault when exposed under the high-temperature environment .

Description

technical field [0001] The invention relates to the technical field of automobile instrument panel control, in particular to an automobile instrument self-adaptive backlight control system and method. Background technique [0002] Automobile instruments are composed of various instruments and indicators, especially warning lights and alarms for drivers, etc., which provide the drivers with the required information on the car's operating parameters. According to the different working principles of automobile instruments, they can be roughly divided into three generations. The first generation of automotive instrumentation is a mechanical movement watch, the second generation of automotive instrumentation is called electrical instrumentation, and the third generation is a full-digital automotive instrumentation. It is a networked and intelligent instrument with more powerful functions and richer display content. , the wiring harness connection is simpler, and the instrument i...

Claims

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Application Information

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IPC IPC(8): G09G3/34G09G3/36B60Q3/18
CPCG09G3/3413G09G3/36B60Q3/18G09G2320/0626
Inventor 王卫忠谢敏谭富民
Owner HUIZHOU DESAY SV AUTOMOTIVE
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