The invention discloses a tractor and trailer connection state detection circuit and a trailer, and belongs to the technical field of trailers. The tractor and trailer connection state detection circuit is arranged on a tractor, the connection state detection circuit comprises at least one driving circuit, the output end of the driving circuit is used for being electrically connected with a load in the trailer, and the driving circuit is configured to drive the load to work; the input end of the signal acquisition circuit is electrically connected with the output end of the driving circuit, and the signal acquisition circuit is configured to generate a first signal when the output end of the driving circuit is suspended, or generate a second signal when the output end of the driving circuit is connected to a load; the first input end of the control circuit is electrically connected with the output end of the signal acquisition circuit, the control circuit is configured to judge that the tractor is connected with the trailer when receiving the first signal and judge that the tractor is not connected with the trailer when receiving the second signal, the cost is low, and the compatibility is high.
本申请公开了一种牵引车与拖车连接状态检测电路及拖挂车辆,属于拖挂车辆技术领域。牵引车与拖车连接状态检测电路设置于牵引车,连接状态检测电路包括:至少一个驱动电路,驱动电路的输出端用于与拖车中的负载电连接,驱动电路配置为驱动负载工作;至少一个信号采集电路,信号采集电路的输入端与驱动电路的输出端电连接,信号采集电路配置为在驱动电路的输出端悬空时,生成第一信号,或者在驱动电路的输出端接入负载时,生成第二信号;控制电路,控制电路的第一输入端与信号采集电路的输出端电连接,控制电路配置为在接收到第一信号时,判定牵引车与拖车连接,在接收到第二信号时,判定牵引车与拖车未连接,成本较低,兼容性高。
Tractor and trailer connection state detection circuit and trailer
牵引车与拖车连接状态检测电路及拖挂车辆
09.05.2025
Patent
Elektronische Ressource
Chinesisch
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