阅读说明：本技术 具有动态自适应及迎宾延时功能的汽车后尾灯控制系统 (Automobile rear tail lamp control system with dynamic self-adaption and welcome delay functions ) 是由 冯如伟 孟祥旭 周波 李学强 于 2020-06-05 设计创作，主要内容包括：本发明涉及汽车电子零部件领域,尤其是汽车传统的后组合灯与微电子技术相结合,属于机动车照明技术应用领域；包括主控制器、检测组件、尾灯组件和电源组件；所述检测组件包括光照度传感器；所述电源组件包括电源模组,电源模组电连接的微型锂电池以及微型锂电池连接的升压电路；所述光照度传感器、电源模组分别与主控制器连接,主控制器输出端分别连接微型锂电池和功率调整电路；所述功率调整电路与尾灯组件连接；尾灯在自动模式下可以根据环境光线的强弱自动调整后尾灯LED的亮度,当车主锁车熄火时,尾灯可以检测到锁车信号,并瞬间完成供电系统的切换,维持尾灯LED原先的亮度,延时一段时间逐渐熄灭,使灯光柔和变化。(The invention relates to the field of automobile electronic parts, in particular to the combination of a traditional rear combination lamp of an automobile and a microelectronic technology, which belongs to the application field of the motor vehicle lighting technology and comprises a main controller, a detection assembly, a tail lamp assembly and a power supply assembly, wherein the detection assembly comprises a light intensity sensor, the power supply assembly comprises a power supply module, a miniature lithium battery electrically connected with the power supply module and a booster circuit connected with the miniature lithium battery, the light intensity sensor and the power supply module are respectively connected with the main controller, the output end of the main controller is respectively connected with the miniature lithium battery and a power adjusting circuit, the power adjusting circuit is connected with the tail lamp assembly, the tail lamp can automatically adjust the brightness of a rear tail lamp L ED according to the intensity of ambient light in an automatic mode, when an automobile owner locks the automobile and extinguishes, the tail lamp can detect a locking signal and instantly complete the switching of a power supply system, the original brightness of the tail lamp L ED is.)

1. The automobile rear tail lamp control system with the functions of dynamic self-adaption and welcome delay is characterized by comprising a main controller, a detection assembly, a tail lamp assembly and a power supply assembly; the detection assembly comprises a light intensity sensor; the power supply assembly comprises a power supply module, a miniature lithium battery electrically connected with the power supply module and a booster circuit connected with the miniature lithium battery; the illuminance sensor and the power supply module are respectively connected with the main controller, and the output end of the main controller is respectively connected with the miniature lithium battery and the power adjusting circuit; the power adjusting circuit is connected with the tail lamp assembly.

2. The automobile rear tail light control system with the dynamic self-adaption and welcome delay functions as claimed in claim 1, wherein the tail light assembly comprises a turn light module, a position light module, a brake light module and a back-up light module.

3. The automobile rear tail lamp control system with the dynamic self-adaption and welcome delay functions as claimed in claim 1, wherein the detection assembly further comprises a radio frequency induction unit, and the radio frequency induction unit is connected with the main controller.

4. The automobile rear tail lamp control system with the dynamic self-adaption and welcome delay functions as claimed in claim 1, wherein the boost circuit is electrically connected with the power adjusting circuit.

5. The automobile rear tail lamp control system with the functions of dynamic self-adaptation and welcome delay as claimed in claim 1, wherein the output end of the main controller is connected with a power management module, and the power management module is respectively connected with a micro lithium battery and a booster circuit.

6. The automobile rear tail lamp control system with the functions of dynamic self-adaptation and welcome delay as claimed in claim 1, wherein the micro lithium battery is mounted on the tail lamp control board.

7. The automobile rear tail lamp control system with the dynamic self-adaption and welcome delay functions as claimed in claim 1, wherein the illuminance sensor is mounted above a front windshield of the automobile.

8. The automobile rear tail lamp control system with the functions of dynamic self-adaptation and welcome delay as claimed in claim 1, wherein the power adjusting circuit comprises a transient voltage suppressor, an input voltage reverse-connection preventer, a high-side current source driving chip and a switch circuit.

9. The automobile rear tail lamp control system with the dynamic self-adaption and welcome delay functions as claimed in claim 1, further comprising a fault diagnosis circuit.

10. The automobile rear tail lamp control system with the functions of dynamic self-adaptation and welcome delay as claimed in claim 9, wherein an input end of the fault diagnosis circuit is connected with an output end of the high-side current source driving chip, and an output end of the fault diagnosis circuit is connected with the main controller.

Technical Field

The invention relates to the field of automobile electronic parts, in particular to the combination of a traditional rear combination lamp of an automobile and a microelectronic technology, and belongs to the field of application of motor vehicle lighting technology.

Background

With the rapid development of the automobile industry, the automobile holding amount in the society is higher and higher. To meet consumer demand, many manufacturers push new models even annually, with automotive lighting being an important consideration. The popularization of automobiles prompts people to put higher requirements on driving safety, comfort and technological sense. Traditional automobile tail lamp needs artificial switch, forgets when ambient light is darker and turns on the lamp in case, will bring very big hidden danger to driving safety, and each tail lamp kind of form is single, can not mediate luminance automatically, experiences and feels generally.

The traditional automobile rear combined lamp needs to be manually turned on, the brightness cannot change along with the ambient brightness, the automobile is automatically turned off after being flamed out and locked, and the experience feeling is general.

Disclosure of Invention

The invention aims to improve the self-adaptive capacity of the rear tail lamp, combine the advanced electronic technology with the traditional illumination and ensure the driving safety.

The technical scheme of the invention is as follows:

the automobile rear tail lamp control system with the functions of dynamic self-adaption and welcome delay comprises a main controller, a detection assembly, a tail lamp assembly and a power supply assembly; the detection assembly comprises a light intensity sensor; the power supply assembly comprises a power supply module, a miniature lithium battery electrically connected with the power supply module and a booster circuit connected with the miniature lithium battery; the illuminance sensor and the power supply module are respectively connected with the main controller, and the output end of the main controller is respectively connected with the miniature lithium battery and the power adjusting circuit; the power adjusting circuit is connected with the tail lamp assembly.

The tail lamp subassembly includes indicator module, position lamp module, stop lamp module and back-up lamp module.

The detection assembly further comprises a radio frequency induction unit, and the radio frequency induction unit is connected with the main controller.

The booster circuit is electrically connected with the power adjusting circuit.

The output end of the main controller is connected with a power management module, and the power management module is respectively connected with the miniature lithium battery and the booster circuit.

The miniature lithium battery is arranged on the tail lamp control panel.

The illuminance sensor is arranged above the front windshield of the automobile.

The power adjusting circuit comprises a transient voltage suppressor, an input voltage reverse-connection preventing device, a high-side current source driving chip and a switch circuit.

The automobile rear tail lamp control system with the dynamic self-adaption and welcome delay functions further comprises a fault diagnosis circuit.

The input end of the fault diagnosis circuit is connected with the output end of the high-side current source driving chip, and the output end of the fault diagnosis circuit is connected with the main controller.

As further optimization of the invention, when a car owner carries an intelligent key to approach the car, the automobile tail lamp actively senses the arrival of the car owner by sensing the intelligent key, gradually lights the tail lamp and the rearview mirror floor lamp through the main controller, and the tail lamp can acquire a car locking signal and turn off the light in a delayed manner so as to bring better experience to the car owner.

The biggest characteristics of developments self-adaptation usher time delay tail lamp system are scene control, and the tail lamp can be according to L ED lamp's luminance in the strong and weak automatic adjustment position lamp module group of ambient light under automatic mode, and when the car owner locked the car and flame-out, the radio frequency induction unit in the tail lamp can detect the lock car signal to accomplish power supply system's switching in the twinkling of an eye, maintain each L ED kind of original luminance in the tail lamp subassembly, and the time delay is put out gradually for a period, makes the soft change of light.

The dynamic self-adaptive welcome delayed tail lamp can adaptively adjust the brightness of a L ED lamp in the position lamp module according to the ambient light intensity in an automatic mode, particularly, the duty ratio of a PWM control signal of a power adjusting circuit is properly increased in weather with reduced visibility such as rain, fog and the like, and the brightness of a L ED lamp in the position lamp module can play a better using effect.

The dynamic self-adaptive welcome delayed tail lamp can automatically adjust the brightness of the light along with the ambient light, and the safety of driving at night is greatly improved in the unlocking and locking processes.

Drawings

The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.

Wherein: FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of a power regulation circuit according to the present invention;

in the drawing, 1 is a main controller, 2 is a power supply module, 3 is a light intensity sensor, 4 is a radio frequency induction unit, 5 is a miniature lithium battery, 6 is a power supply management module, 7 is a booster circuit, 8 is a fault diagnosis circuit, 9 is a power adjustment circuit, 10 is a turn signal module, 11 is a position signal module, 12 is a brake signal module, 13 is a backup signal module, 14 is a high-side current source driving chip, 15 is a switch circuit, 16 is a transient voltage suppressor, 17 is an input voltage reverse-connection preventing device, and 18 is a current output control module.

Detailed Description

As shown in FIGS. 1-2, the automobile rear tail lamp control system with dynamic self-adaption and welcome delay functions comprises a main controller 1, a detection assembly, a tail lamp assembly and a power supply assembly, wherein the detection assembly comprises a light intensity sensor 3, the power supply assembly comprises a power supply module 2, a micro lithium battery 5 electrically connected with the power supply module 2 and a booster circuit 7 connected with the micro lithium battery 5 (a DC booster circuit is adopted in the booster circuit 7), the light intensity sensor 3 and the power supply module 2 are respectively connected with the main controller 1, the output end of the main controller 1 is respectively connected with the micro lithium battery 5 and a power adjusting circuit 9, the power adjusting circuit 9 is connected with the tail lamp assembly, the tail lamp assembly comprises a turn lamp module 10, a position lamp module 11, a brake lamp module 12 and a main backup lamp module 13, a filter circuit arranged in the power supply module 2 is connected with the main controller 1 when the power supply module 2 is powered on, the micro lithium battery 5 is connected with the light intensity sensor 2 and supplies power to the light intensity sensor 3, the light intensity sensor 3 sends detected light signals to the main controller 1, the light intensity signal adjusting module is adjusted according to the brightness of the tail lamp 5, the tail lamp is adjusted by a singlechip microcomputer, the brightness adjusting module 5, the brightness adjusting module is adjusted by a singlechip microcomputer, the brightness adjusting module 369, the brightness adjusting module is adjusted by a singlechip microcomputer, the brightness adjusting module is adjusted by a singlechip microcomputer switch, the brightness adjusting module is adjusted by a driving circuit, the brightness adjusting module is adjusted by a driving circuit, the brightness adjusting module, the brightness.

Preferably, the main controller 1 is an MCU controller. The MCU controller is adopted to achieve good control effect.

The detection assembly further comprises a radio frequency induction unit 4, and the radio frequency induction unit 4 is connected with the main controller 1. The radio frequency induction unit 4 is arranged in the tail lamp and interacts with the intelligent key information matched with the whole vehicle; therefore, the radio frequency induction unit 4 is paired with the intelligent key of the whole vehicle, and can output an approach signal to the main controller 1 within a certain induction range; the main controller 1 controls the running light to light the position light module 11 in a streamer gradually-lighting mode, so that a better honorable feeling is brought to a vehicle owner.

The booster circuit 7 is electrically connected to a power adjustment circuit 9. The booster circuit 7 is directly connected with the power adjusting circuit 9, and the voltage adjusted by the booster circuit 7 is transmitted to the power adjusting circuit 9.

The output end of the main controller 1 is connected with a power management module 6, the power management module 6 is respectively connected with a micro lithium battery 5 and a booster circuit 7, the output of the micro lithium battery 5 is connected to the booster circuit 7, whether the booster circuit 7 boosts the output is controlled by the power management circuit 6 or not is judged, the power management module 6 is responsible for charging and discharging management of the micro lithium battery 5, the power management module 6 controls the charging and discharging depth of the micro lithium battery 5 to protect the micro lithium battery 5 from overcharging and overdischarging, once a radio frequency induction unit 4 in a tail lamp detects a car locking signal, the power management module 6 is immediately switched to a battery power supply mode, a tail lamp (the tail lamp is generally a combination lamp and internally comprises a tail lamp assembly) is turned off in a delayed mode to form a gradual breathing type extinguishing effect, the power management module 6 adopts a stable and reliable hardware interlocking circuit to realize instant switching of a power supply system, original brightness of an L ED lamp on a position lamp module 11 is.

The miniature lithium battery 5 is installed on the tail lamp control panel. The lithium micro battery 5 stores charge when powered on.

The illuminance sensor 3 is installed above the front windshield of the automobile. The illuminance sensor 3 is installed above the front windshield and used for measuring the intensity of ambient illuminance and transmitting the acquired light intensity signal to the main controller 1.

As shown in fig. 2, the power adjusting circuit 9 includes a transient voltage suppressor 16, an input voltage reverse-connection preventer 17, a high-side current source driving chip 14 and a switch circuit 15, where an input voltage sequentially passes through the transient voltage suppressor 16, the input voltage reverse-connection preventer 17 is connected to the high-side current source driving chip 14, the main controller 1 controls the on-off of the output terminals of the high-side current source driving chip 14 and the current output control module 18 through a switch S1, a switch S2 and a switch S3 in the switch circuit 15, and adjusts the magnitude of the L ED lamp driving current in the position lamp module 11, the output terminal of the high-side current source driving chip 14 is connected in parallel with three 4.7nF chip capacitors, the output terminal of the high-side current source driving chip 14 is respectively connected in series with the anodes of three chip L ED lamps on the position lamp module 11, the power adjusting circuit 9 outputs a PWM signal varying with ambient light under the control of the main controller 1, controls the brightness of L ED lamps in the position lamp module 11, and prolongs the service life of the tail lamp assembly, so that.

The automobile rear tail lamp control system with the dynamic self-adaption and welcome delay functions further comprises a fault diagnosis circuit 8. The detection of the failure information is facilitated by providing the failure diagnosis circuit 8.

The input end of the fault diagnosis circuit 8 is connected with the output end of the high-side current source driving chip 14, and the output end of the fault diagnosis circuit 8 is connected with the main controller 1. The input end of the fault diagnosis circuit 8 is connected with the output end of the high-side current source driving chip 14, the fault diagnosis circuit 8 transmits an output signal of the output end of the high-side current source driving chip 14 to the main controller 1 for processing, the main controller 1 sends a corresponding fault code to the car sound controller after processing, and a flow for searching faults can be initiatively initiated through the instrument panel. When the high-side current source driver chip 14 is in normal operation, the level signal indicating the state is output as a low level, and when a fault occurs, the high-side current source driver chip 14 outputs the level signal indicating the state as a high level.

The working principle of the invention is as follows:

when the system is powered on, the main controller 1 calculates PWM control signals of the turn light module 10 and the position light module 11 according to analog signals of the illuminance sensor 3, the control signals drive L ED lamps in the turn light module 10 and L ED lamp brightness in the position light module 11 through the power adjusting circuit 9, the micro lithium battery 5 is charged through the power management module 6 in the driving process, when the vehicle is locked by a vehicle master, the radio frequency induction unit 4 in the tail light detects a vehicle locking signal and switches to the micro lithium battery 5 to supply power, the tail light is turned off in a delayed mode, and a better visual effect is formed.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiment according to the present invention are within the scope of the present invention.