The invention belongs to the technical field of vehicle rearview mirrors, and particularly relates to a rearview mirror chip logic operation method and system with a retry function. Through a designed current detection circuit, a threshold detection circuit and a current comparison circuit, special customization of a rearview mirror folding driving chip is realized, and a rearview mirror driving motor tries to recover when being in a stuck state, so that normal operation of folding work is facilitated; meanwhile, a soft start-off circuit is designed, so that current impact during starting can be reduced, mechanical stress during starting can be reduced, system instability can be prevented, the situations of voltage spike and current sudden change when the motor is turned off are reduced, the motor and a driving circuit are protected, the reliability of the system is improved, the service life of the system is prolonged, and noise and vibration situations are reduced; and the condition of reverse current in the turn-off process of the motor is prevented.
本发明属于车辆后视镜技术领域,具体地说,涉及一种具备重试功能的后视镜芯片逻辑运行方法、系统;通过设计的电流检测电路、阈值侦测电路以及电流比较电路,实现了后视镜折叠驱动芯片的特殊定制,让后视镜驱动电机在处于卡死的状态下尝试进行恢复,从而便于折叠工作的正常运行;同时还设计了软启关电路,可以减少启动时的电流冲击、降低启动时的机械应力,防止系统不稳定,同时减少在电机关断时电压尖峰和电流突变情况,保护了电机和驱动电路,提高了系统的可靠性和使用寿命,减少了噪音和振动情况,防止电机在关断过程中发生反向电流的情况。
Rearview mirror chip logic operation method and system with retry function
一种具备重试功能的后视镜芯片逻辑运行方法、系统
2024-12-31
Patent
Electronic Resource
Chinese
IPC: | H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES |
Rearview mirror system and rearview mirror control method
European Patent Office | 2024
|European Patent Office | 2015
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