CAN bus-based garbage truck control system

Abstract

The invention discloses a CAN bus-based garbage truck control system which comprises a cab CAN controller, a touch screen, a valve block CAN controller, CAN buses from 1 to 3, a button operation box, a rear operation disk, an induction switch module, a pressure sensor and a hydraulic electromagnetic valve module, wherein the cab CAN controller and the valve block CAN controller carry out CAN communication through the first CAN bus; the cab CAN controller and an engine ECU of a garbage truck carry out CAN communication through the second CAN bus; the cab CAN controller and the touch screen carry out CAN communication through the third CAN bus; the first CAN bus and the third CAN bus communicate with each other based on the CANOpen protocol; and the second CAN bus communicates based on the J1939 protocol. The CAN bus-based garbage truck control system simplifies the wiring harnesses of the whole truck, improves the reliability, the safety and the maintainability of an electrical line of the whole truck, realizes data sharing of the whole vehicle, is flexible for configuration, small in size and high in protection property and has a relatively large practical value.

Description

technical field [0001] The invention relates to a garbage truck control system, in particular to a garbage truck control system based on CAN bus. Background technique [0002] Existing garbage trucks are generally controlled by PLC. [0003] The way of adopting CAN bus and traditional PLC control has the following advantages: [0004] 1) The CAN controller works in a multi-master mode, and each node in the network can compete to send data to the bus by means of bit-by-bit arbitration with a lossless structure according to the bus access priority (depending on the message identifier). [0005] 2) The CAN protocol abolishes the traditional station address coding and replaces it with coding of communication data. Its advantage is that the number of nodes in the network can be theoretically unlimited, and the addition or reduction of devices will not affect the work of the system. . At the same time, different nodes can receive the same data at the same time. These characteri...

AI Technical Summary

Problems solved by technology

[0010] At present, the garbage truck adopts the PLC control mode, which is distributed control, while the chassis adopts the CAN bus mode, and the two cannot communicate with each other, cannot obtain the real-time parameters of the engine, and cannot directly respond in real time, and the circuit layout is complicated, and failures high

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