摘要：【中文】本发明公开一种汽车事件数据记录系统EDR控制器，包括：电源模块、对外接口模块、备用存储模块、碰撞检测模块、扩展模块和主控模块；电源模块包括电源保护电路、备用电源电路和电源稳压电路；电源保护电路的输入端连接汽车电源，电源保护电路的输出端连接备用电源电路，备用电源电路的输出端连接电源稳压电路；电源稳压电路的输出端连接备用存储模块、碰撞检测模块、扩展模块和主控模块；主控模块与对外接口模块、备用存储模块、扩展模块和碰撞检测模块为双向数据传输连接；对外接口模块CAN接口电路通过CAN网关与汽车OBD接口连。本发明适配各种类型的车辆，拓展了EDR控制器的适用范围，提升数据提取效率。 【EN】The invention discloses an EDR controller of an automobile event data recording system, which comprises: the device comprises a power supply module, an external interface module, a standby storage module, a collision detection module, an expansion module and a main control module; the power supply module comprises a power supply protection circuit, a standby power supply circuit and a power supply voltage stabilizing circuit; the input end of the power supply protection circuit is connected with an automobile power supply, the output end of the power supply protection circuit is connected with the standby power supply circuit, and the output end of the standby power supply circuit is connected with the power supply voltage stabilizing circuit; the output end of the power supply voltage stabilizing circuit is connected with the standby storage module, the collision detection module, the expansion module and the main control module; the main control module is in bidirectional data transmission connection with the external interface module, the standby storage module, the expansion module and the collision detection module; the external interface module CAN interface circuit is connected with an automobile OBD interface through a CAN gateway. The invention is suitable for various types of vehicles, expands the application range of the EDR controller and improves the data extraction efficiency.