The invention discloses a vehicle-mounted safety digital quantity input and output device and a cooperative detection method, and relates to the technical field of vehicle control, the device comprises a first MCU, a second MCU, a safety digital quantity input module, an MCU interaction module and a safety digital quantity output module; the cooperative input dynamic detection circuit is used for controlling the safety acquisition circuit to control the acquisition and transmission of the input digital quantity of the first grouping quantity path according to a first dynamic detection start control signal of the first MCU; according to a second dynamic detection starting control signal of the second MCU, controlling a safety acquisition circuit to control acquisition and transmission of input digital quantity of a second grouping quantity path; it can be seen that the two MCUs of different structures are utilized, the input digital quantity is dynamically detected in a dual-channel cooperative detection mode through the cooperative input dynamic detection circuit, the influence of common cause faults of the two MCUs on the detection accuracy is avoided, and the configuration cost and the board card size are reduced.
本发明公开了一种车载安全数字量输入输出装置及协同检测方法,涉及车辆控制技术领域,该装置包括:第一MCU、第二MCU、安全数字量输入模块、MCU交互模块和安全数字量输出模块;协同输入动态检测电路,用于根据第一MCU的第一动态检测启动控制信号,控制安全采集电路对第一分组数量路的输入数字量的采集传输进行控制;根据第二MCU的第二动态检测启动控制信号,控制安全采集电路对第二分组数量路的输入数字量的采集传输进行控制;可见,本发明利用不同架构的两个MCU,通过协同输入动态检测电路对采用双通道协同检测的方式,对输入的数字量进行动态检测,避免两个MCU的共因故障对检测准确性的影响,降低了配置成本与板卡尺寸。
Vehicle-mounted safety digital quantity input and output device and cooperative detection method
一种车载安全数字量输入输出装置及协同检测方法
09.01.2024
Patent
Elektronische Ressource
Chinesisch
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