The invention discloses an optimization and improvement method for non-bright background light of a radio, which belongs to the technical field of automobile radios and comprises the following steps of: inputting the background light of all modules of a whole automobile into a PWM (Pulse Width Modulation) signal through a BCM (Body Control Module) for control; the whole PWM output falling edge voltage of the BCM is reduced from 4.8 V to 3 V due to the addition of the modules; the inversion of an ILL signal in the radio is triggered, so that the radio is automatically adjusted to the darkest mode; a back air conditioner panel background light power supply is changed from a BCM (Body Control Module) input PWM (Pulse Width Modulation) signal to be connected below an IG Therefore, the situation that the falling edge of the background light PMW input of the radio is certainly higher than 4.6 V is avoided; and finally, the background light of the radio and the background light of other modules are lightened synchronously. According to the invention, the background light of the radio can be synchronized with the background light of other modules in the vehicle, and the cooperative work consistency of the background light of the radio and the background light of other modules in the vehicle is improved; normal functions of the radio are ensured, major complaints of customers are avoided, and the use satisfaction degree of the customers in the night driving process can be improved.
本发明公开了一种收音机背景光不亮的优化改进方法,属于汽车收音机技术领域,包括:整车所有模块的背景光通过BCM输入PWM信号控制;因增加模块导致BCM的整个PWM输出下降沿电压从4.8V下降到3V;进而触发了收音机内部ILL信号反转导致收音机自己调整到最暗模式;通过把后空调面板背景光电源从BCM输入PWM信号改接到IG继电器下面;从而避免了收音机背景光PMW输入下降沿一定会高于4.6V;最终确保收音机的背景光与其他模块的背景光点亮同步。本发明可以确保收音机的背景光与其他车内模块的背景光同步,提高收音机背景光与车内其他模块背景光协同工作的一致性;确保收音机功能正常,避免了客户的重大抱怨,可以提高客户夜间行车过程中的使用满意度。
Optimization and improvement method for non-bright background light of radio
一种收音机背景光不亮的优化改进方法
2024-02-27
Patent
Elektronische Ressource
Chinesisch
IPC: | B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / H04H BROADCAST COMMUNICATION , Rundfunkübertragung / H05B ELECTRIC HEATING , Elektrische Heizung |
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